Tumblr oversight: Tagged Posts with "hyphens"

You know how you can search for posts that have been tagged by using the search bar at the top of your dash?

For example, you can see posts that people have tagged with my username by searching for cutlerish.
That will bring you to this URL: http://www.tumblr.com/tagged/cutlerish

Good so far, but what if you search for a tag with spaces in it? Say, missing e.
You are still okay. That will go to the URL: http://www.tumblr.com/tagged/missing+e
The + is interpreted as a space.

What if you want to search for a tag with the plus sign?
Still good. Searching for missing+e ? That’ll go to the URL: http://www.tumblr.com/tagged/missing%2be
The %2b part is something called an ASCII code that represents +

And if you wanted to search for a tag with a hyphen (like missing-e). Well, you are screwed.
This goes to the URL: http://www.tumblr.com/tagged/missing-e, where the hyphen is interpreted as a space.

If you are clever, you might using the ASCII code for hyphen (%2d) directly, and try URL http://www.tumblr.com/tagged/missing%2de
The %2d is translated to a hyphen, and again interpreted as a space.

The end result? Nobody searching for tags or expecting tracked tag notifications for tags with hyphens in them will ever be successful.

No big deal? What if your username has a hyphen in it? You will never be notified about posts with your username in the tags. I think that is a bad thing.