It's pretty clear that Doc keeps a close eye on billionaire Robert F. Smith's LI account.
The people he tagged in that comment:

Roland Martin is based in Washington DC and is a very strong advocate for black owned media.

Ex-Ambassador and ex-Atlanta Mayor Andrew Young has been an outspoken Civil rights advocate his entire life.

TD Jakes is an influential pastor, film producer and writer.

Tyler Perry is a world-renowned producer, director, actor, screenwriter, playwright, author,songwriter, entrepreneur, and philanthropist.

Throw in his son-in-law JHB and he has quite the pipeline of movers and shakers.

Doc isn't shy mentioning UNVC on LI and tagging some very high level individuals at the same time.

When we finally launch, we will witness a breathtaking climb in our portfolios IMO.

Hanging in there for the big show.