Not necessarily. Encouragement is feedback too and can be vital for people to make another attempt.

Yeah, I somewhat could agree with that. For those still too "green" who actually needs such encouragement as vital to make another attempt.

It is probably only when a person already has a certain level of proficiency in a particular skill, that critical feedback has positive affects.

Well, on this one, I somewhat would concur with you stronger now. :)

Some people do not seem to be able to do anything other than criticize though, as they have little sensitivity to the bigger picture, the greater story, so see the damage they do as helpful. It is another delusion, while they think they are "keeping it real".

In my opinion, they would only harm and would do some necessary mildy damage to the weak and frail. The older we get, the less time, tolerance and patience we have to go with pointless sensitivities, ineffectual rodeos and useless diplomacies to "keep it real"

Relevancy always has a time limit, especially when it comes to human concerns.

This time, I do agree with you absolutely.