I don't understand...

[Foo01]

There is nothing wrong with kindly giving advice when you meet a fresh player in a dungeon. Nothing at all. You can justify it in as many ways as you want, but being a kind and caring human being and trying to help others in a kind way is not bad.

There is nothing wrong. But want is "kindly giving advice" from your perspective is "angry orders or busy body nanny state" from another. So it is very subjective what counts as kindly advice and what is not offensive to others.

But it should be obvious and self-evident that "being a kind and caring human being and trying to help others" would not demand other players to optimize their DPS and play like some robot doing everything a close to perfect as possible, and certainly would not get mad at them for 1 mistake and kick like the elitist do.

But rather "being a kind and caring human being and trying to help others" would mean it is ok to go slower, not speed run 100%, carry some of them sometimes when you can etc. And it would mean not be so demanding of them like the OP wishes. So what if their DPS is not on the high end, are you going make an issue of it and make everyone else feel bad?

As long as they are not trolls, I would give them the benefit of the doubt and if I can carry them I certainly don't mind.