I'm going to have to contend with that. It is an opinion in several important senses.
1) You believe it, but not everyone would agree with you. Most people would, but some philosophers and some psychopaths (in the literal sense) would ask you for what grounds you are judging them. This leads us to the second front:
2) You cannot prove your statement in any logical sense. You can appeal to the masses, to common sense and human decency, to utility and the consequences of not following your idea. But you can't make a logical argument that morality is absolute; at best, you have an educated opinion on the matter. Like solipsism, moral relativism is impossible to disprove. That's not to say it's true, but it does mean that our perspectives on this front are fundamentally opinions.
On the "kicking out the player" debate, I personally have never seen an IC incident worthy of banning a player for, and would agree that most of the issues posted here before are OOC issues exposed mid-game. But I'm not closed to the idea that they could exist.
Ultimately, Josh, they're your boards. If you don't want us to reccomend that people kick players for in-game behaviour, then let's not make such reccomendations. It might be an opinion, but it's an
educated and
privileged opinion, so it's worth heeding on at least two fronts.