Set up a 21 profile to receive paid messages from people outside your network. Keep the money, or donate it to charities like Black Girls Code.21.co
It's like LinkedIn InMail, except you get paid!
An interesting experiment...
I found about it when, just overnight, I started to see tweets by various notable
(and non) people that activated an account. I have seen asking prices from 1$ to over 100$.
Will it gain some traction or be just a passing fad?
Don't know, but the idea to reach some otherwise unreachable person may have some appeal. Surely it works as an anti-spam!