He posted an image containing a word that is not allowed on JazzFanz. He was not, however, suspended specifically for that. After accumulating a fourth infraction within 180 days, an automatic 2 week suspension was imposed. A fifth infraction in this same period would result in permanent banishment.
Personally, I like UB. He's an entertaining guy. I like the board much more when he is involved. That being said, every forum member, upon signing up, agrees to follow the forum rules. A breach of this agreement can and will result in administrative action. Multiple actions result in suspension and banishment.
I understand that it's fun to get all riled up about the gestapo moderators and their random harassment of innocent posters, but really...
Edit: Oh, to answer your question, LG98 - UB posted an image that contained the "N" word. It was not used in a racially confrontational manner, but that word is a no-no in any form. UB knows this.