Nor spamming? When I searched your post history all of them were just one liners even didn't complete one line most of the time which maybe considered as spamming too if you don't get into any discussions.

Participating on bounty is not a crime unless you cheating with altaccounts but even that will leads to negative trust not ban.So the reason maybe spamming or plagiarism.

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You admitted that is your account so you are never allowed to post in this forum with any of your alt accounts too which cause ban evasion and leads to banning of all your accounts.

PS:You ruined your Jr.member account too.