I agree. There are many times I've read something here and either the writing or the content is just not good. I can't find it in myself to criticize anyone in the comments. A few chapters into my first story I had someone message me and basically tell me I had no business writing and posting such crap. I almost stopped because of that. I'm not gonna lie... it hurt. But, I saw that others were posting positive comments so I merely thanked the person for their opinion and told them to stop reading. To this day I still question everything I write, always wondering if it's any good or not.
Try not to be discouraged. There are plenty of members who aren't negative. Or... at least I hope so!
Speaking of writing, I think I'm finally past my writer's block. I have a story to finish and I hear my laptop calling me.