Alright here are the rules. Follow them carefully and you have nothing to fear.

1. Do not post NSFW content (this includes pictures or stories). Doing so could result in being banned from the group.
2. Apparently FIMFiction has a thing about posting links to stories with a Mature rating. So if you have a topic with a story that is rated Mature and contains platonic tentacles then remember to put a [Mature] tag in the title.
3. When doing a topic partaining to a story please include tags. For example: [Dark], [Slice of Life], [Crossover], etc...
4. Be considerate and polite to one another (it is okay to warn someone if they post NSFW content).
5. Have fun.

Seems pretty easy.