What I take away from it is this-
Uploads help TG and keep the site active and vibrant. Uploads can help both the uploader and the viewer.
One sticky point was the possibility of stealing someone else's thunder (or 15 minutes of fame) with a duplicate busking upload. My answer to that is to just let a bit of time pass between yours and someone else's duplicate upload in a busking thread.
I personally don't think it's necessary to PM someone to upload a duplicate song that someone else has done- unless you're doing it on the same day (or week?) as them. My opinion anyways.
Thank you all for chiming in.
I've got the day off work today. Guess what I'll be doing?

**EDIT- Just to be clear- I'll be recording a video for UPLOAD!