[milohax]

I try to offer Appreciation when I see something great, or something helped me. I make a point of that.

But I'm reluctant to offer Coaching or Evaluation, and never unsolicited, or on a public forum. I find it difficult to not come across as a dick, and frankly that's how I read anyone else's unsolicited feedback.

[Jwarder]

As an alternative idealistic view: you have all this awesome knowledge that you have built up over a lifetime that you are now hoarding. No one is perfect and some of your advice might be wrong or otherwise unhelpful; but sharing knowledge and advice allows others to achieve great things that they might have struggled with alone.

What is worse: risking someone thinking you are a dick or allowing someone to needlessly suffer through their problems?