The forum doesn't perform regional restrictions neither district on IP but though if dictated of undergone/undergoing illegalities that're highily prohibited by the forum, there's a censor tool program that detects your activities and then automatically gets you banned.
This is what I can contribute here but expecting further or the technical factors is what I can't help out.
Again, everything is foggy and vague.
Autoban is issued automatically to any user if the censor program detects violations?
The further we go, the more incomprehensible it becomes. I have a friend who claims he was autobanned. He said there was no plagiarism, and if there were any quotes from public sources, they were accompanied by links. It turns out that the censor program banned the poor guy based on some criteria other than plagiarism compliance.