What exactly does it take to get banned?

This is brought up from an earlier question. It's because I see a lot of offensive people on here especially in th artists' threads. Their posts end up in the trash can but that's it. So, just curious.

[pommy48]

i was actually bored and read the forum rules XD

[Minor Offences] :
Advice will be given to minor offenders, infractions will be given if repeated. A ban of 14 days will be given if accumulated 3 infractions.


[Medium Offences] :
1st offense. Warning via PM and E-mail for the first time.
2nd offense. Banning for a week after staff council.
3rd offense. Permanent ban.

[Major offences] :
1st offense. Permanent ban.

from http://www.ahsforum.com/forum/showthread.php?t=10131

[v3lun420]

can u tell me what major offences are?