There is also a little chance that whoever is in charge on this case in particular believes the red tags are enough of a punishment, in the end, even if he was banned, nothing would stop a banned user to use a new alt account.
Forum doesn't stop a banned user to create new alt account as long as it's used to create ban appeal, if they're create post outside Meta board, they're breaking the rule of "ban evasion".
Permanent banned is a must, do you really want to his new alt creating merit fishing threads in this forum?
Some are so dumb that they use the same IP, the same addresses or show other evidence that makes it easy to catch them.
I think you completely understand about "no need to being 100% honest" and "anyone will learn from a lesson"? pointing out those things will help him to hide it lol.
Anyway talking about same IP address, his alt account already get banned in the past while his other accounts are still active in this forum, is just proving how the administrators either doesn't really care with ban evasion due to IP address connection.