[For 1.6] Strict Username

[ecoo]

Hey there, great plugin!

Is there a way to extend this username strictness to guest posting? My forum allows guests to post, and they can choose usernames, but this plugin doesn't extend for this case. I looked at the code, and it seems attached to the submit button on registration. Maybe you could help me out and write the code for the submit thread/post button for guests?

Thanks