Most of my posts are saved in notepad, I don't have time to click the post button so I save them and spread my good words at the last moment.
how persistent is he posting for the scam campaign he is promoting?
I'm sure that in some signature campaigns managed by a good manager. he must have been removed from the list of participants.
is there no prohibition for a user like him?
If you read on the campaign thread
[open] Restart of 1xBit signature campaign - new signatures and more spots! there's a rule "Spam, offtopic and posts in Bounty threads are not counted" it's clear spam but the manager/team still count for of his posts. Well we can't expect anything about this, if they're really not counting spam posts of their participants... obviously all of the participants already got removed. All the participants have nothing to lose since their account already got red tagged and can earn money by spamming.
Those posts are of High Quality and Not spam.
"if you read my posts" then you'll find they're of higher quality compared to yours.