Maybe in the end my advice goes to waste because the forum doesn't moderate the scam. Users who are blocked due to continuous plagiarism or spamming or for other reason such as evading ban. It might be obvious that we should ignore it and but not let it influence many other users to run into scam. I really think that their profile should not be ignored and not leave them free to post anything that could affect other users.

Alright, since I know that disallowing displaying signature is impossible just by promoting a scam site then I have to lock this thread. Hopefully the tag and flag can be effective in preventing affected people from trying the site or depositing money there.