The purpose is a selfish one for me in a way (I live alone with my 3 dogs, they were really freaked out last week when I was on shrooms) but not really, as I get to share the music I like while I get to listen to it and you get to enjoy it too (pay it forward).
I thought the thread title was as clear as can be, unless you're doing your normal trolling dumb question routine in which case, well done, you got me, I took the bait hook line and sinker.