They need to avoid the trend of using that suffix to mean "enthusiasm"; the compound word does not conventionally mean what they intend. Yes, languages evolve, but the etymology doesn't remotely support it.
There's way more than you can imagine (or at least, that I can).
Another interesting point is that in general, the more specific the sub-reddit, the less it is infected with the type of "reddit culture" that gets so much bad rep here on HN (although occasionally it always gets some, cause Reddit has a shared culture--I personally don't mind, really).