Every discussion method eventually gets abused. Then the owner figures out what rules they want to enforce, and how.

Every website is one URL away. You can't rely on being relatively invisible.

"If I wrote blogs there, id like to see feedback and supportive comments" -- yes, but (a) if you write a blog, you can choose a platform that has comments and (b) eventually the Nazis or the pedophiles or the Nazi pedophiles will colonize your comments section when they discover you don't have any moderation rules. At which point, you will have three choices:

1. turn off comments

2. moderate comments

3. give up