textures only relate to how much $ they spent. In general $ spent doesn't always correlate with good, dedicated players.
Usually # of games played can indicate this, but some newbies really just play a lot because they have no lives, and some great people just don't play many games.
So, what we're looking for is something that can make that distinction. Iunno. I can't think of any single one thing that can.
BUT, maybe let's take this back another step. You're complaining about people acting stupid. Do they do this with their tori characters when fighting? No, they do it by opening their mouths. So the simplest solution is /ignore. Seriously. Just add another file with a list of ignored people and reference that to block messages.
If the noobs really want to blabber and use /em to talk, well, they'll probably just get their asses kicked so fast you don't have to deal with it until next time their fighting. And when they lose that attention inbetween, they'll just stop. I don't think they would stick around for 8 people to go through que just to curse you out for a minute then lose.