Obviously members of 50/90 will be pro comments, they help spur us along through the challenge. But that's not the only context. I'm thinking of one time a collaborator reposted a song I'd written with her off of 5090 in another songwriting forum. They weren't just critical, it was a seemingly endless series of cruel jeers and insults. Some would say just take what's constructive from that and use it to improve the song, but it wasn't helpful initially, to me.
And that was totally innocent on the part of my collaborator. It did end up with a better recording of the song. I worked on that song producing several versions of it till I had one I would have been happy to share, rather than the original 5090 work tape version, but it wasn't a fun process like music making usually is for me. And I'm sure those twits would have ripped it to shreds just the same if they'd heard it anyway.
So here's an article on the subject of feedback and commentary, and also, what are your thoughts?