I'm all for improving the filters by allowing more of them and maybe even regular expressions but also I think it's a little conspiracy brained to assume every person posting shout chat ads is trying to circumvent your personal filters to advertise to you and lord in heaven I can't imagine getting mad at people for gposing or bothering to put it down by trying to contrast it with photography. I promise you that the way you play and enjoy the game isn't actually that better than how anyone else chooses to. People who get mad at other people having fun are much more in need of grass touching imo.
Overall the chat system is just kind of a mess in 14. It's not the worst but it could be better. Novice chat shouldn't double as a world group chat etc but not because I don't think it wouldn't be nice to have one so that people wouldn't feel the need to be in the novice chat.
Oh well I'm old man yelling at the square cloud.