(Sorry this is a day late, I've been a bit busy recently, (yesterday was my birthaday) and didn't have the time/energy/remember to post this till now)
It's a proven fact! (not really). However, active commenting is very important to this community; the individual writers benifited by the thoughts/feedback, and the commenter. Reading other writers' work and leaving a comment can help you find inspiration for your own pieces, and keep your creativity alive, all while supporting fellow writers!