I need add ability to add comment for user profile. What i am thinking is, create a content type with empty body and leave just comments, and afterwards insert that node to user_profile. But i don't know how to append comments to user profile tpl file. How to do this, or maybe other suggestions?
After some research i decided to make my own module to add comments on user profile, i will make a block and insert this block to only user page user/*, and will track user id to show proper comments.