<shrug> If you're telling people to play safe, you're not helping them understand what you mean by that. It's not constructive, because it doesn't give them a goal or a thing to do.
Beyond that, why try to play other people's roles, anyway? I have enough trouble with mine. Rather than ranting at someone for not doing what you think they should, why not adjust your approach to account for their actions? Why not try taking up some slack? Warding isn't just the support's job, after all. Especially not now that they can only place 3+1.
Or, more generally, why not try to step inside their head for a moment? If you know things they don't, or think things they don't, isn't it fair to think that perhaps they have thoughts, plans, and ideas that you aren't privy to?
Instead, you just assume they're trash, or trolls, or whatever. Because they don't do what you want them to, or don't do it the way you want them to. That seems counterproductive to me.
I dunno. Seems like we have a basic difference of approach to the game. I'm not here to argue about it, because it's a pointless argument, so I'm gonna leave it at that. You keep doing you, I'll keep doing me, and if we ever meet on the Rift, rest assured that I'll play my game my way, and I'll blatantly ignore your "advice" if I don't agree with it, or if I know something you don't. And I fully expect you'll do exactly the same.