>>/10899/
 >>/10900/ 
RIP!

Yeah, non-FIm related spots on the web can still have FiM stuff, sometimes significant amounts of it. Take the spacebattle forums for instance. It had/still somewhat has FiM related fics posted to there, most of them crossovers, but some fully fledged (and I think one or two that were somewhat notable if I recall), and sometimes had discussion of events and happenings. Like:
https://forums.spacebattles.com/threads/a-hairy-problem-mlp-fim.253483/
https://forums.spacebattles.com/threads/fimfiction-net-ddosd-by-keksec-international.336228/

It is mostly tangential and secondary priority, but still enough to count. Honestly, this is one of the things that probably  a bit painstaking in the blind webscraping front. (and on a side note, I am impressed how active this forum is, don't know much on their community but that is always nice to see!)