This is what I submitted. It hasn't appeared on the Times site though.
Change the word "cyclist" in your article, Mr Parris, to read "gay” or "black" and you'll see the article for the nasty, violence-inciting rant it is. For a man supposed to be a serious journalist, you have just joined the gutter press. Do you really think it funny to incite murder, Mr Parris? There are idiots out there who take words such as those you've written to justify their violence towards others. You are a fool of the highest order. In case you just haven't got it into your nasty brain just how bad your hatred is, two friends of mine could have been killed by sort of actions you incite. One was seriously injured by such a wire strung across a cycle path and it left a nasty wound round his neck. Another was pushed off his bike by the passenger of an overtaking car. My friend ended up in a ditch with crushed vertebrae in his neck. He was lucky not to be made a quadriplegic: or worse. No, Mr Parris, your article is not funny: it’s pathetic.
this is an uphill struggle - but for what it's worth. I considered the PCC route, but it's not actually against the PCC code to incite violence. I'm going to remove this letter from the post tomorrow morning, and I'd hope that it wasn't quoted in the interim. If you write to the police then you should just do that and let them get on with it.