I am now in the habit of scrolling past the posts of certain contributors without even thinking about reading them. For me those people do not exist. In the real world they are people who I would avoid anyway, in view of their attitude and behaviour and I can see no reason to do anything different here. They have given me no reason to think that they can contribute anything that I might find of benefit to me.

As has been said on so many occasions - if these people are shunned by everyone who finds their behaviour unacceptable they will, eventually, moderate their behaviour or leave the forum.