Now here's a 3rd situation I'm against.
Suppose there were 2 brothers, brother A, and brother B. Both brother A and brother B hate each other. Both of them hang in #channel. Both of them want to be op in that channel. Both of them do not want to be banned from #channel.
Suppose brother A becomes op. He will ban brother B.
Suppose brother B becomes op. He will ban brother A.
I'm completely against this situation - because it violates the Golden Rule (the do unto others thing). Now whether or not the Golden Rule is illogical or not, I haven't spent the time to think about it.