To preface this, I'm not here to say "REMOVE ALL THIS STUFF FROM E621 I HATE IT" so don't worry about that. If the mods want to allow it or don't then that's their call. My actual complaint is that like a third of the posts with this tag get removed for unclear reasons. I suspect it varies from mod to mod.
A lot of posts get removed for being "pro-MAP" (which i don't think is actually accurate because a lot the removed posts made it clear that the sex wasn't consensual but that's besides the point) but there are still plenty of posts with MAP pride colors that are still up. Some that could be interpreted as more pro-MAP than the posts that've been removed.
Again, if the powers that be want to keep MAP flags off the site (even just to avoid all the arguments that break out when they show up) that's all good, but it'd be nice to have some explicit guidelines established on the matter, 'specially cause a lot of the removed posts don't have working sources (I guess their aren't many places that want to host them ha). It seems like these kinda posts are gaining in popularity so I think this'll be something that needs to be sorted out sooner or later.