We have until now published all negative comments on this blog, even those that appear to come from different people with different names but are actually from the same source.  We have done this to encourage debate.  

However, the comments from one particular source are now becoming simply unpleasant personal attacks on individuals rather than reasoned arguments and we therefore reserve the right to block comments from multiple names from the same source that do not add to debate.

The technical term is trolling and it can be a criminal offence.

It’s election year.