Wow! A lot of discussion - and probably every possible point has been touched on, if not discussed very thoroughly. But I want to chime in:
IK, your question is a valid one, and something I've often pondered, myself.
I praise people on this site all the time, and I mean every word of it. I don't give empty praise or flattery. So if I have gushed over something anyone has posted - I am sincere in what I have said.
I look at what the person is asking when they post. Do they want feedback, or help putting together an outfit? Or do they want a boost? I don't think there is anything wrong with asking for a little positive feedback.
To me, style as a visual art - and sometimes even a performing one. I don't always 'get' some of the art of our forum members, but I do 'get' that they are all putting themselves out there, expressing themselves, and I really love that!
If I feel I have nothing to contribute to a thread, via positive comments, or helpful feedback, I don't say anything, and I go on to the next thread. But more often, I don't comment on threads, because of time constraints.
On the Friday link love, I sent in the Recovering Shopaholic (Debbie Roes') post about her own personal accountability. I think that post was so relevant to all the recent conversations here about wardrobe curating, streamlining, planning, and spending less money. But what really spoke to me, was her own experience in feeling very successful, and feeling very happy about what she had posted - and then feeling shattered when so many people chimed in to 'helpfully' tell her what was wrong with her outfits, with her hair, etc.
At the end of the day, the only person who can really make you feel truly good about yourself is you - but other people can make you feel bad. I feel reasonably certain that we have all experienced this at one time or another. I don't think I have ever seen that happen here, though. That is what makes this forum such a remarkable one, is how wonderful, loving, kind, and compassionate everyone is here.