This happened to me today and I’m still really mad.
I was just checking out Jack's twitter then saw that stolen gif, and I was able to tell it was one of yours before even seeing the watermark :p I'm sorry that people keep stealing your hard work man. Sometimes it can make you feel like it's not worth it anymore but just try to stay positive and remember people who steal are doing it just because they don't know any better. We gotta tell them it's not the right thing until things change, which can be frustrating but we are here for you! (•ᵕᴗᵕ•)