since this ban protest is clearly one-sided and lacks some much needed valid opinions - I'll give you my thoughts on this.
permanent ban wasn't necessary; the seriousness of a permanent ban should be only be given out for few reasons, which would be absolutely fine if that were the case.
now to begin, abusing votekick system is written on the rules, but nomulous already stated that,
now, freekilling is most definitely bannable but not permanently, with the exception of mass freekilling and leaving.
donator abuse, I don't have enough context to speak for this, but from my knowledge, punishments should be dealt by division manager or division leader personally, with that said - I don't think donator abuse should be permanent ban-worthy either, better to strip them of their commands/powers since they had paid for the powers.
repeated offenses should be continued with more added punishable time, but again not perma - my suggestion is to remove the permanent ban and make a (very) long one, a year maybe, dependent*.
chorito has made the effort to make this ban protest. :)