Kenny,
You raise a good point about beginners. However-
where somebody states that they are a beginner or improver, just about all comments are constructive and positive, sometimes to the point of being unhelpful.
Where the tyer is of a high standard, the comments again are usually appreciative and good natured.
It is a shame that more intermediate tyers don't post their flies, just for the pleasure of "look what I did, what do you reckon?". This kind of tyer usually knows where the fly can be improved and can take a bit of stick.
However, given how pressed we all are with time to browse through lots of run of the mill offerings, perhaps it is a good thing that the
majority of posts with pictures of flies are of
beginners/improvers looking for crits and encouragement
New patterns
Top quality tying.
(I missed the catty comments on tippets - must check it out

)