leo_nine said:
Fchan is back at fchan.us now.

What bothers me about fchan is that you can't post any references to e621 (neither links nor the name itself).
If you try, you get the vague error message "posting not allowed".

I'm not sure if this is intentional, because as someone once remarked:
"Never attribute to malice that which is adequately explained by stupidity."
( http://en.wikipedia.org/wiki/Hanlon%27s_razor )