The issue with re offending users is likely because a limitation to SMF. Moderators can't see if a user has been reported or had x amount of posts deleted recently
Do Mods act on external evidence? I've just reported 2 topics for bump spam, showing loyce.club link 1 and loyce.club link 2 as evidence. The user has no posts deleted by Mods, but bumps his topics about 6 times more than allowed.What happens to such a report? If his latest bump gets deleted, he'll probably just continue. If he deleted his own post before a moderator sees my report, does that invalidate my report?
Quote
I think the reporter badges will at least help revitalise reports again, however it would probably only be a temporary solution until everyone has reached the highest obtainable badge.
That's easy to solve: give badges based on the number of posts reported in the past 120 days.Is it possible to use BBCode in reports? URL-tags could be useful.
Can I promote my spam detection tool a bit here? See: [Active] Finding spam and scams by keyword.
I have few of those cherry Delete keycap buttons, along with bitcointalk, satoshi and theymos, just waiting for a challenge 
Here's a challenge: Make theymos without € sign 