Hi Peace, I am an old member of the previous forum, but very infrequent poster - I would say ignore the spam, its sometimes an inevitability in todays world. In fact, I'm surprised the previous forum wasn't more dogged with the typical spam that comes - it may be that this forum allows internet links, which allows these people to put links up to do whatever it is that does - boost link tos or some google thing. But in any case, it may have to be something we will have to deal with on some level - one can put up barriers to these sorts of things being put up, but then that may discourage others from posting, and I'd rather err on the side of inclusiveness in a forum such as this than risk discouraging those who may be shy or have trouble posting in the first place. I'd say just ignore it completely, or as Peter did, make light of the fact they are usually just copy-and-pasted nonsense.
Anyhow, that's my .02. Sorry to hear that it made you uncomfortable. I'm sure there may be some way of removing the posts, if there is an administrator who can do so.