I have, with a certain amount of dread, allowed anyone to post comments on the blog. Not being entirely out of my mind, I have also chosen to moderate comment postings for content prior to allowing them to appear in print.
This is not to stifle anyone. I will allow negative comments to appear, but I am somewhat justifiably concerned about unwanted advertising and inappropriate language appearing on my telephonic difference machine. My kids read this on occassion, and I hope other children do as well. I want to keep it a rather suitable environment for them and myself.