Recently several comments have been left on this blog that are adverts for pharmaceuticals or have links to undesirable websites.

I’ve now switched “Comment Moderation” on, so when you submit a comment I have to check it before it will become visible. This will allow me to screen out unwanted comments but let through all the genuine ones.

I’ve also switch on “Word Verification” – when you submit a comment, you will be asked to read a some twisted-looking letters and type them it. The theory is that a spam robot won’t be able to do this, but a person can.

Paul