1. A member scams or tries to infect other members.
2. Gets caught.
3. Everyone hates him.
4. Everyone negative reps him.
5. He doesn't posts for a few months.
6. Changes his username.
7. Posts a few good things.
8. Positive rep.
9. Everyone likes him again.
I'm not talking specifically about positive/negative rep, I'm just saying how people come and say "ha fuck you" and then later "hey you are a good guy"