I could have sworn it was on the list of things that would quickly get your comment removed if you didn't edit it out, which I think is the right call for a community that has a firm stance about oppressive language in even common and casual phrases. But a quick perusal of search results shows (to my disappointment) that "butthurt" is still used somewhat regularly around here.

edit: maybe I'm too sensitive to this sort of thing, but the way I've always interpreted it is that it's not just homophobic (though it is that too), it also reflects how normalized (cw) r*pe culture is.