Me too, and I don't submit there much anymore as a result. I have cocked my head sideways trying to figure out what was wrong with my gifs and still couldn't. There used to be a rule about titling gifs "When it Snows in April" (which you did here), a rule that was very haphazardly enforced as well judging by the malformed titles I saw in that stream all the time. At least that arbitrary rule has bitten the dust.
I sort of get what Ser is saying about your gif here, but also, I see all sorts of random-ass gifs in the reactiongifs stream that don't seem very "reaction-y." Which is fine, because sometimes reacting with a seemingly offbeat and irrelevant reaction gif is hilarious. Or, there could be a very situational use for it that makes it make sense. We don't really know, it's up to the user!
Agree it is one of the more curiously moderated big streams.
Worth noting though that similar streams like My_Custom_Templates and my own stream NewTemplates (shameless plug) will feature gifs as well as still templates. :)