How can you stop others from telling you what is better gear?

I don't know, maybe introduce a new harassment report for that? :P

Actually I started a thread that all the content should have reasonable iLevel requirements. That would be the first step. Then we have to deal with players using wrong items altogether.

I think we can agree that education of "not caring casuals" is far better solution for the community than letting them sit in their ignorance. It's stupid how many players think that reaction is the problem, while they completely ignore the cause that leads to said reaction.