Apolgies if it has been raised before - I had a look and couldn't see any mention. Some sites have a button which you can click to "Ignore all posts from this user". I dare say if it existed people would click it for me! Fair enough. But it would be a seriously useful feature. Reduce a lot of acrimony and trolls would waste their time banging away and not realise that nobody could see their nonsense. What do you think?