I have changed my philosophy towards comments on this blog. I hope that readers will continue to feel free to comment but I want to take greater care with respect to comments which contain insulting and even conceivably defamatory language.
Simply put I will not tolerate personal, abusive language at all. I do have a persistent problem with troll(s) and I am dealing with them.
All comments will now be moderated although comment submission itself will be simplified because I have switched off the word-recognition requirement.
If you do wish to post under a pseudonym that is fine but you must use the same pseudonym every time you comment. You cannot post as 'anonymous' or change your identity with different posts.
If I detect people trolling under different pseudonyms, perhaps with different IP addresses, I will ban the person permanently and inform other blogs.
I welcome discussion of this policy.