I mean this sincerely, I'm glad I'm somehow avoiding this so-called Undertale fanbase, because I just got that game and got a few hours into it. S'alright so far, but I wouldn't call it Earth-shatteringly awesome.
But if there is this fanbase out there, I don't wanna see it, because I hate liking things that are either mainstream or "cult".
There is a very comfortable middle ground between those two things, and I don't want Undertale ruined by being too liked, even if it's by a relatively small number of people who like it too much.
That middle ground is key. Like, say, being someone who misses Titanfall because it really was a great freaking game, or very much preferring Chrono Cross over Trigger, or being a hardcore Corpse Party and old-school horror game fan, or owning a Vita without a 3DS and without owning any new-gen consoles, or believing Nami is the sexiest champ in this entire game, for some examples.