All you Jonsa-freaks are fucking delusional. Its a crackship. Its not going to happen. Sansa is Jons sister, nothing more. Jonerys is canon. Get over it!
I usually don’t react to asks like this, but this permanent missuse of the term “crack-ship” is really bothering me, so I want to make some things clear concering fandom-shipping-lingo:
The terms “crack-ship” and “non-canon ship” are not and never have been synonymous, nor 100% interchangeable.
A “crack-ship” is something that has absolutely no possibility of ever happening in canon. It’s something crazy, out-of-place or unlikely moving towards impossible. It’s shipping two characters who’ve never interacted in canon and never will, are completely incompatible with each other, or have never showed any sign of any kind of romantic potential. It’s a ship with absolutely zero back-up in the narrative.
A “non-canon ship” on the other hand, simply is something that isn’t canon. That’s literally the only requirement. Fiction thrives on love-triangles, “will they wont they?”, “whom will she/he choose?” or presenting a main-character with a variety of (potential) love interests over the story. Being “non-canon” doesn’t necessary make something “crack”. If you can find some sort of textual evidence for romantic potential, that isn’t a crackship. Even if it isn’t canon.
Here’s a list GoT-crackships:
Davos x Jon (never showed interest in each other, incompatible when it comes to sexual orientation and age. But I’ve read things, anon. I’ve read things I will never forget)
Brienne x Sandor (like … to each their own. Why the hell not?)
Missandei x Jorah (she has a boyfriend, he’s obsessed with Khaleesi. Never showed any interest. Like … naahhh )
Jorah x Sam (Peel of my skin and I’ll love you)
Lyanna x Stannis (I read a fun little ficlet about them recently.)
Robb x Margarey (Not all “crack-ships” are super duper weird. This is a pretty cute one, that I really like. But never interacted with each other, never will.)
Robb x Daenerys (This is what canon-divergence was made for, if you ask me.)
Arya x Joffrey (I have actually read fanfiction in which Joffrey wasn’t bat-shit crazy cruel, but only a pretty arrogant, entitled jerk. Arya was the one engaged to him and it was a really interesting read.)
Tyrion x Cersei (the internet is a weird, dark place with weird, dark ideas.)
My two personal Jon-crackships:
Jon x Tormund (because wouldn’t it be cute ???)
Jon x Missandei (because wouldn’t it be amazingly cute ???)
The one I have for Daenerys:
Tormund x Daenerys (First: Tormund is so amazing, everyone would be happy to have him. I ship him with everyone. Second: Mother of Dragons x Warrior-women-loving-wildling? Sign me the fuck up.)
And the one I have for Sansa:
Sansa x Podrick (he’s such an obvious bottom, sorry not sorry. Love this in fanfiction. It’s adorable.)
Here’s a list of GOT-non-canon-ships, that don’t deserve the title “crack-ship” IMO:
Jon x Daenerys (no anon, they aren’t canon yet. Can you look into the future? Leaks don’t count. Canon counts.)
Jon x Sansa (if you don’t believe there’s enough textual evidence to back them, you are the delusional one. You don’t have to ship it, you don’t have to like it, you don’t have to believe it’s going to happen. But acting like other people are delusional for thinking they have serious canon potential simply shows that you feel threatened by them. There, I said it.)
Jon x Arya (grrm intended them to end up together. I don’t think it’s very likely to become canon, but it isn’t a crack-ship either. The creator himself entertained the possibility once.)
Sansa x Petyr (No, not even being “problematic” as hell makes a ship “crack”. This will never become canon, but I can accept that people like to take the underlying dynamics and change the narrative in fanon. That’s what fanfiction is for. You can take two characters, eliminate the canon-things you don’t like and add things to make your imagination come to life. This might be a bit on the verge to crack, but they definetly have enough canon-interaction to earn a place in this list.)
Sansa x Tyrion (I don’t consider them canon. Probably not going to happen. A little problematic as well, but see the commentary above)
Sansa x Sandor (similar to sansa x tyrion in my book. More likley than it, probably, since Sansa acknowledges some sort of romantic feelings as well. Liked the fanon-version - sorry not really in canon - for a long time. Still do.)
Sansa x Theon (canon-interaction, I can totally see where people are coming from. Nothing is going to happen with like 99,9999% certainty, but I don’t think the term “crackship” is a 100% fair.)
Jaime x Brienne (do I really have anything to add to this ? It’s an absolute fan-favourite. You don’t have to be a fan, but canon acknowledges this having some kind of potential)
Brienne x Tormund (The show is so obviously playing with this => not gonna actually happen - probably, but canon wants us to think about it. So, not really a “crack-ship”.)
Arya x Gendry (has a pretty good chance at being canon ~somehow~, at least on the show. But still isn’t canon yet.)
Bran x Meera (same as Arya x Gendry)
Daenerys x Tyrion (he’s obviously in love with her. Look at all the hearteyes.)
Daenerys x Jorah (bookverse a little to creepy for my taste, but as I said: To each their own. not so creepy on the show. Still not a fan. Still not really “crack”)
I could go on, but I really hope you get my point by now. Not everyone will agree with this lists. There will probably be a lot of shippers who themselves say “naah. That’s my crackship”. Fine, you can define your own opinion however you like. But don’t insult other people who think it isn’t.
I don’t really care too much about canon, a lot of my all-time otps and ships never became canon (Zutara, Kakasaku, Narusaku, Ichiruki, …). Never stopped me from shipping them. Of course I want to see my ships become canon, but it isn’t a necessity. I’m rooting for Jonsa to happen as long as it’s possible, because I see a lot of foreshadowing for them in both the books and the show. If I’m wrong? I will be disappointed, but okay. Happened before. I’ve learned to be okay with that.
But what I’m not okay with is being called stupid or delusional for interpreting canon-material differently. For seeing potential that IS THERE. I know what a “crack-ship” is anon, and Jonsa simply isn’t one. Wether they become canon or not.