I consider myself an acccomplished quilter, but I make mistakes. The first time I put a block up on another forum, the first or second response was you put it together wrong. I wasn't offended by the statement, someone said Oh! quilters call that a design opportunity, no it's a mistake. Did I change it, NO. My grand-mother taught me to quilt, sew and crochet, she was very critical and I needed to be precise with my sewing.
As far as others I always say nice fabric, Wow! that was a lot of work. I f they say how do I do this better, I try to explain how to maybe do it different, try never to use the word better.
Now my other hobby raising snakes, I am brutal with someone doing it in a manor that is ill advised. That is different there is a life involved even if it is a snake.