I make music and music videos, and used to enjoy posting the work to reddit very much. About 2 years ago the tone of posting on reddit changed to a ban on self promotion. I really never understood how that was supposed to be a valid policy, and saw certain accounts break that rule without any sort of intervention at any time they wanted to.
The fact is that reddit is really an undercover "upvoted for profit" front-site now. After they were done building the community from democracy, it changed to something else, a place where corporate and paying interests now are what push mediocre and triggering content to front pages... They banned me permanently based on my IP. and stripped all 3 of my accounts from access to my subreddit that I spend a lot of time building, and while I could easily get around that, I realized that it's simply easier and better to just work on my own web sites and not have to keep posting to gain traction for sharing my original work.
The same is happening on many social sites that have massive user bases but high overhead... It's not sustainable in the long run, because they will never be able to make everyone succeed no matter how much they pay.
We're reaching a new plateau/failure cliff for large-scale social media, and so many creators and talented people have been chewed up and spit out by the false promises those platforms once made. Now the focus is to go back to real organic growth by starting locally, and cutting losses with social sites...
Myspace is gone now, a neat and tidy profit for good ole Tom, remembered fondly by most... I'm not sure that modern social sites will have the same fate, nor be able to offer the same value to a large community as Myspace once did.