Here’s a second-hand stat I heard today:
“95% of your tweets should be about product or promotion.”
To which I respond:
“Would you rather be an interesting person someone met at the party? Or the annoying announcer nobody wants to listen to?”
Social media isn’t hard people. Quit trying so hard to make it hard. Be yourself. The organic (and way more lucrative) opportunities for your product or promotion will come. Just quit trying so goddamned hard. Or if you must, put that energy into being the life of the party instead.