Not into that billionaire on billionaire action?

Cuban is closer to a commoner than he is to Zuckerberg.

even though you add the Mark to the headline, the title is still confusing. there are so many backstories to this. there is a little bit of clickbait factor.

Mark Cuban is a bit of a broken clock is right twice a day type pundit on many topics. There's a reason why Russ Hannemann in HBO's Silicon Valley was based on him...

His primary achievement in life was to persuade Yahoo! to buy his broadcast.com business for nearly $6B (which was shut down very soon thereafter).

Actually, the same is true of Paul Graham, too (viaweb). Yahoo! made some people a lot of money, while impoverishing Yahoo! itself.

Preceding that, really, his primary accomplishment was the Russ Hanneman-esque literal "RADIO ON THE INTERNET", which of course what was broadcast.com

I'm just old enough to remember the hype and growth around realnetworks and realplayer in the seattle area too.

In the early 90s he was the way to listen to college sports radio broadcasts.