I know you were talking about beta-readers, at least largely. I thought the linked post was talking about feedback received after posting.

It's not that I don't want to write well. I'm working on accepting and evaluating criticism. But... well... I write and post for fun and in hopes that other people will also have fun (or be moved) reading what I wrote, and preferably tell me about it. I want to write well because that will make my writing more likely to have the effect I want, if only on myself. But I also want to enjoy myself, and there comes a point where editing, especially restructuring, kills that. Maybe it shouldn't.

I am never going to be A Real Writer in the eyes of those who say the purpose of writing and getting responses is primarily to become a better writer -- or to become publishable eventually -- because, frankly, I'm not willing to put as much effort into it as they are. This is my decision, so I really have no excuse for feeling huffy about it.

But demanding concrit really does intimidate some very well-meaning reviewers, though I don't know what the numbers are compared to those discouraged by having concrit rudely rejected.