Right on spot!!, you have said the most part, I believe people have issues with commenting possibly because they want to engage for engagement's sake, I mean they are just there for the appearance not for the actual content.

Thanks a lot for this guideline, well, I personally hope to improve in my best part when engaging with others as well, which is why it is good to have fewer quality engagements rather than bombarding everyone with cliche feedback for appearnaces.