There was a thing, teh first space nun war, where it was me, and the opponent was a newish character.
So, we'd set ourselves up for a (very) small war, and it was fun to RP it all out. Had lots of interesting things going on in it.
As I recall, on the IGS threads about it, there were several older players than I/my opponent, who had commented on it, and some may have become involved beyond comments. (I think there was a subsequent war between other people as a result).
The thing is though, that Space Nun War I, is mine/my opponents. Some people would use it to further their arguments. "See, the Matari are At It Again" or "Behold, for the Amarr are At It Again", and I'll probably not express this all that well, but can't they let us fight our war in peace?
Maybe other small/new entities have similar things. Part of IGS is finding opponents to have RP wars with, and finding one that would be a reasonable match. Having much larger groups get involved can maybe feel a bit like your character becoming a bit-part actor in your character's own life, which is a bit
As for arguments about stuff, occasionally, the use of scriptures can be fun for me, arguing about interpretations, but at the same time, I don't know if there's any effect on the other people. Someone comes out with a scripture quote and talks about it, it affects me, by making me think "how would Lou counter that?" which can be nice, but do my counter-statements have similar effects on the other people in the thread? I have no idea. If there is no effect, then I am wasting my time typing a response, but not wasting my time thinking a response, as I sometimes get ideas about things as a result.