@Yay0ilikeforat people are not getting blocked just for saying unpolite things about Fandom, whether it's true or not. In fact, many of us complain about Fandom very often.
You may get warned about saying bad things about FANDOM... or CC admins (I know because I was warned like 2 days ago), for example. You can ignore the warning for the most part, because if you really did something wrong, they'd just block you.