I think I know the site you are talking about. Ends in ... pilot life. Shot up from 0-20,000 likes overnight. Someone is trying to start a business here so good luck to them.
Disclosure: I run
https://www.facebook.com/SecondHandPilot Only 2,200 likes for us over 4 years. We only take the details you need to sell your gear for free (name, email, phone). I do accept beers as gratitude!