I have one of these shirts and all their stickers. It's one of my most favorite startup swag I've received :)
Really awesome, I totally recommend it for both reading and writing!!! :D
I don't have too much trouble with the layout design, but I think the other points could be enhanced. Another useful feature could be to filter by subtags. E.g: I'm on the Collaborators Wanted tag but I want to filter for a specific language.
