When it comes to legality, her presence on the forum is actually kinda helpful, because the fact that she is willingly communicating with us basically destroys the foundation of any cyber-stalking claim she is trying to make. (Nothing says you are afraid of Null and his users than constantly taunting and badgering them).
That being said, I do understand where you are coming from, Melinda started posting around page 43, and in the span of about 14 months, the thread grew to over 900 pages, mostly of people just arguing with Melinda. Pretty much all the informative posts have been drowned out by the people arguing with her (I will admit that I've definitely played a part in that over the past few days, and I'm kinda ashamed of it). Maybe banning her would help start the process of getting the thread back on the right track (Which is talking about her constant failures in the court and any developments in her lawsuit against Null, not about arguing with her about inane shit like Jewish law and and ejaculation)