I'd say option 1 would be the most fair because he doesn't appear to have learned anything or be prepared to change his behaviour. He's still using fake accounts and putting them on the Zakstunts scoreboard, and he's already has second, third, fourth, fifth, sixth, seventh, eighth, ninth, tenth, eleventh, twelfth, thirteenth, fourteenth and fifteenth chances.
However, option 3 could also be okay because, as I've said before, he's capable of behaving like a grown-up and takes a deep interest in Stunts, so if we can really limit his spamming and trolling, there shouldn't be a problem. What you could call "the real CTG" behind all the crap, is someone I'd like to have on a forum. But in later years, that person has only accounted for 5-10% of activity.
The spamming bothers me a lot because I feel like the possibility to have real human-to-human conversations here drowns in it. I really enjoyed the weeks we had without him. But if he's with us but not posting useless drivel all the time (including countless boring posts about personal life, weight, exams, drinking and American hockey), that would also be great.