[quote=@Maavoimat]
Real quickly, before I post something and end up making myself look like an idiot, is writing in first person frowned upon? I originally assumed that the "thousands of characters" part in the OP meant we'd be using (and therefore speaking from the point of view of) multiple characters. 
[/quote]

It's not frowned upon per-see, you won't get kicked out or anything, but we don't tend to do it.

Personally, I feel that first person only works when there is just one perspective. RP's involve multiple perspectives by necessity (even if you yourself are only playing one character, the other people in the RP have their own separate characters.) It's much easier to remember who is rping who if they use third person.