If you notice a user who is posting suspicious or malware links constantly, then you don't need to report all the posts. It's extra work for moderators that keep unhandled for longer. Simply report one of the posts and write a comment to review this user's post history. The rest of the things will be handled by the moderator. It does work; previously I have done this.
But however, the account not getting numbed yet is probably because Bitcointalk is an upholder of freedom but now maybe people’s safety should prioritized more in this users case.
Bitcointalk allows freedom of speech but not malware links or phishing links. Since scams aren't moderated, you have to report suspicious links or malware links. The moderator will handle it.