What is interesting or of value to you is somewhat irrelevant, in that the purpose of taking a photo is to show it to others.
Maybe in your world, my friend, certainly not the case in mine. I would say that for me, its about 75% for my eyes only and 20% for family and 5% for friends and public.
I am sure that if I looked at 100% of your pics, you could find pictures that have great meaning for you but are not even worthy of comment from me. Not because they were good or bad, but simply because they had NO meaning to me.
Now once (if) I decide to turn pro, I am not so naiive to not know that the tables are turned and that outside critique has value from someone other than myself (the client or the person paying, if you will).
Ever wonder why I've only posted *1* pic in almost a year for critique? Its certainly not because I do not want critique... its merely that the pictures that I take I can critique myself based on their meaning to me, not to anyone else. Was it not Garbz a few weeks ago that discussed a picture that MEANT something to him... a family member? It was a basically technically crappy picture, yet it held great value to him... not to you, me or likely anyone else on this board. Showing this pic and asking for a critique would be insulting to his perceived value of that picture and a total waste of his time.
Photography is not strictly about showing your pics to others, its about the pleasure of learning, of relaxation, of the enjoyment. Yes, yes, yes, you can share your pics with others, maybe most do... but it is not an exclusive and 100% ONLY existing point of view that everyone shares... certainly not one that I share.
There are many reasons to ask or give or NOT ask or be willing to accept a critique.
The world is not black and white (pun intended... lol) and what is interesting and of value to me... at this point in time... is the ONLY thing that matters to me. Your reason for taking pictures is *obviously* not the same reason I have for squeezing the shutter and I bet if we polled people here why they take pictures, more will side with my reasons (pleasure fun, learning) than will side with yours (to share pics, and be critiqued so you could learn and "improve").
I think that my attitude stems from the fact that I am not born to this world to impress anyone else other than myself. Whether that impresses others or not... well in the end their opinion of me and my pictures means nothing. I am the one that has to live with my results. If I am not happy... what is the reason I am doing this anyways if not for my own pleasure? None... at least for me.
How does this branch out to business concepts? Very basically, if what you are doing day-in and day-out is fun and pleasure, its NEVER work. It's like my current business... I never considered it work, and I get up each and every morning laughing inside with pleasure that people are PAYING me to PLAY 10-14 hours a day!