The vast majority of gifs are pointless and do nothing to encourage discussion, which is surely the point of this board.
In fact they are pretty much either really unfunny and completly off topic, and almost done with a sense of arrogance (im too good to discuss the issue with you so here's an insulting gif).
They often break forum rules by containing abuse or derogatory remarks towards another poster (you're a c word/are you on glue), these are no better than the kind of written abuse which happens on other forums that this place supposedly doesn't encourage.
A small few are fine, those which are on topic or relevant.
So yeah, i hate most gifs posted on here lol.