I used to post in a forum that has an "ignore" function. When you add a poster to your "ignore list," then you don't see any of their posts. It seems like a good option, not sure if infopop has it going on here.
Avatar / Picture URL:
You can choose an avatar to show on your public member profile page. Your avatar will also be displayed below your name on each of your posts.
Play around there and you will be able to get a logo.