I found this via Librarian in Black: 12 Important US Laws Every Blogger Should Know.
And, of course, there is the Electronic Frontier Foundation's Legal Guide for Bloggers.
There's a lot to think about and I'll be revisiting these sites in the future. In the meanwhile, I've decided to add the following language about comments to my sidebar: "Comments are great. They add to the conversation. But it's my blog, so I reserve the right to delete any comment. Reasons for deleting comments may include offensive or abusive language or behavior, spam, advertising, trolls, flaming, personal attacks and the like."
What language, if any, do you have on your blog about comments? Have you ever deleted comments, and why?
Since adding word verification to my comments, I've cut down drastically on the spam but every now and then one gets thru. And once or twice I've deleted a duplicate comment.
In terms of offensive language, I'm talking offensive; I don't mean we disagree. Some of the best conversations arise over disagreement.
Here is an example of what I think warrants deletion. It is a comment that was made when this blog was only a few months old; and yes, I deleted it.
Harry Potter is tripe written for children. You and half the adult population should grow up. If you like fart and snot jokes then just say so, don't hide behind a kids book. There are much, much better science fiction or fantasy or magic.witch craft books around but they usually require an intellect so I guess you are out of luck there. Then again you also like Buffy so I'm pushing [word removed by Liz B] uphill here.
edited to add: also being discussed in the comments in the lee & low post, below