2. If the user got wrongfully banned, is there a chance that the ban can be reversed?
Yes. This actually already happened once. Someone got framed for plagirism and theymos found out, so he reversed the ban. Ill tru to find the post and link it here for you.
Here is a link
After investigation, and with help from the rest of the mod team, I've determined that inbizin = bitkoinguru$$$. He created that blog post (registering the domain in June) and then made that post in Meta in order to frame you. The moderator who actually did the banning was not a Russian moderator, but was acting upon what seemed to be a clear case of plagiarism. The thought of this type of attack had occurred to me before, but this is the first time that it's actually been done successfully. I'll have to think about countermeasures.
You're unbanned. Sorry about that.
By the way, slanderer
inbizin has alt account
neHcuoHepProof of joined post
Bitcointalk username: neHcuoHep
Campaign in which one can participate: Signature
ETH address: 0x9Dbb88f89Cc50Bb8bBD9D12Ffce701EAAF960F2E
Ethereum adress: 0x9Dbb88f89Cc50Bb8bBD9D12Ffce701EAAF960F2E
Telegram username: @feedose
Twitter username: inbizin