I'm piggybacking this because a) I'm positive it's the same problem as I personally have seen in the past, and b) there's no real rhyme or reason to what triggers it this time, because small posts are mostly going through....Edit: This is retarded. Imgur is broken now. The entire internet is conspiring to shut me up. I'll take the hint.
Hi, yeah, kind of the reason I piggybacked too, just to offer a "me too" and keep it on the radar,
as logging in/out won't change anything,
and chances of some admin stopping by at the right time to be able resolve the issue are unlikely
A few workarounds/solutions
change your IP, which can be a hassle (reset modem, dialup again)
let a few hours or a day pass, clouflare times out your denial,
reply to a different post inside the threads, since the block is based on your IP and bladeforums preview URL which includes postid (like newreply.php?do=postreply&t=1391120 )
another "solution" , for general forum posting, to avoid tripping traps like this,
compose your node outside of bladeforums,
then on bladeforums click reply/quote, preview once, then post