Autobahn and Chromomania are sad excuses for admins. They ban people for stupid reasons and don't allow anyone to voice their opinion. It's best to stay away from that server, just another terrible rp server.
Under what circumstances is this true?
On his server, AutoBahn rarely, if ever, bans people. And if he does, he only does it if the person has explicity broken the rules.
And what do you mean by voicing opinions? Against bans? It's not exactly easy for someone to defend themselves if they've clearly and undoubtedly broken a rule anyway.
Also, pushing the stereotype that RP servers are bad is just wrong. Just because you don't enjoy them doesn't mean they're "terrible".