As members of this community it is up to us to be proactive and to market Steemit in the traditional social media communities that we have belonged to for years. A migration of a just a few active quality communities to this platform could infuse Steemit with some great content and action. I may compose a general "welcome letter" that can be used by anyone to encourage migration to Steemit. Good post on your part. Here is my latest: https://steemit.com/steemit/@bitcoinmeister/my-daily-list-of-must-view-steemit-quality-original-content-7-13-2016
RE: Steemit lacks quality content - Here is a way to fix it - Invite your favorite content creators to the community