The same way we fund the government now https://www.usgovernmentdebt.us/us_deficit

They are funded by Venture Capital, but their revenue comes from companies paying for "branding" on their company profiles and advertising jobs. If you choose not to pay to brand your company profile, other companies can advertise their jobs on your profile.

Fist bumps > handshakes https://www.health.harvard.edu/blog/fist-bump-better-handsha...

I'm not sure if I can find a direct citation, but Penn & Teller have said that rubbing butts is more sanitary than shaking hands, and that they'd be happy for fans to greet them that way.