Needing a playing field

In the past few days a new person's been leaving relatively offensive comments on some of my friends' blogs. Not offensive like you'd think - not "EnLARge yOUR PeNI$ quICK" posts or anything like that - more like questioning beliefs and opinions stated in some posts. S/he and I were edging into what was sure to become a heated debate, but I suggested we stop posting on the blog comment sections of others and take our conversation to a forum. However I think the poster (A. Jones) is doing their best to preserve their anonymity, which I can understand, given the type of freaks that are out there on the internet. So, I need a good forum that we can verbally rough each other up in that will keep our personal information private. Something easy to navigate if at all possible as well. Anyone got a suggestion? I'll be googling it today to see what I can find. After all, as A. Jones pointed out in one of his/her scathing comments yesterday, I have quite the grasp of google utilization. Though I must point out, A. Jones, that my voluminous wealth of information on Portugal that I demonstrated yesterday came from Wikipedia, not Google... ha!