If you don't want a post/topic of yours archived, you can to the Lurkerbot to ignore it by including "#b#" in your topic title or post message. To have an entire account blacklisted, PM me @GuessMyUserName on GameFAQs or post a message on the DilloFAQs board and I'll get right on it. Putting a method into poster-controlled features would be too easily abusable to get others blacklisted.