If you didn't scam anyone, then you shouldn't be called a scammer. If you didn't plagiarized any content using this account "galahad_s", then this account shouldn't be reported for plagiarism. However, mentioning those don't mean you didn't do anything wrong. "Ban evasion" is in the rules and you disobey it.
They say once your account has been banned, it's not just really the account, it's you who is banned in the forum.
If his alt accounts where connected with scam then he is a scammer.
If his alt accounts plagiarized content multiple times then he is a thief and a liar.
More info about scammer here:
https://bitcointalk.org/index.php?topic=4677612.0Here he is talking with himself like every other lunatic scammer:
https://bitcointalk.org/index.php?topic=3474093.0;all