doubt ppl are shy, more lack of interest... as lately it feels more like a waste of time commenting on every work posted (maybe stars/likes or some system of evaluating should be added)
with more casual stuff, mass of pre-made models, we're getting saturated - to the level of banality... lacking uniqueness.
mistakes and usual suspects are still present here (noise, bad shading, terminator effect, protruding-floating geo...)
with skill & time the uncanny valley is getting deeper and wider... the more you look, the more detail you see
all while ppl start to complain at every possible occasion...
so for now i just hope i haven't struck a nerve
because i hate to lie and as truth hurts, am also brute with attention to detail, annoyingly pedantic... :p
i rather write nothing
Lately you write lot of good stuff ;- ) Anyway, subscribe to everything. (follows brief general rant, in no way pointed towards OP :- ) Just piggybacking on Maru's remarks).
The stuff I personally love and would love to comment is from guys who don't even bother posting on forums. The commercial stuff. For past year, I've been awed by what studios like Guthrie's Boundary, Hayes-Davidson, D-Box,etc.. do. What sets it apart, is they achieve striking images, which achieve particular goal from a restricting brief.
I feel they don't post because the only feedback would be the floor texture could have more resolution and scratches, and what exact HDRi and its rotation was used.
Making nice images on your own spare time is very easy these days, unless you truly challenge yourself to something new you haven't done. It's just playing and they aren't worth as much interest, in their kind of 'run of the mill' flair. It's like showing photo of Eiffel tower and wondering what people think. Some people will be awed because it's nice and crisp, but..