IMO, people who go overboard with gifs should be given tags, not "buttons, so they don't have to post memes". Anyone with the argument "better give me buttons or I'll post memes" has revealed himself as a retarded dipshit. Congratulations.
Anyone too bothered with buttons can always use uBlock or AdBlock to block them. The downside is that they'll still be visible on your mobile devices, where their effect is the worst really.
I like the idea of buttons DLC. That way I won't have them and I'll block them for everyone who was dumb enough to have paid for them