Wrong, you are not allowed to make any new account and continue posting while you are banned, wait for your ban period to be over. anybody who posts after a temporary ban is evading their ban because temporary bans don't have any ban appeal.

A temporary ban means that you have broken some rules and they are your warning, you could only appeal if the ban was permanent, so stop posting and wait it out, this is your warning you wished for.

I assume that staff never temp-ban people by mistake, otherwise, it's fine to appeal.