Twitter just notified me of that fact. It surprised me, a LOT, because:

I didn't use Twitter, at all, even though with an account, until two years ago when I started reading all the posts here about Ram info being tweeted. And when I say 'didn't use' I mean even reading it. I got lucky and my computer had remembered my logon info that entire 10 years it sat unused on my computer.

I think I am signed up on many social media sites and I'm unaware of it. Grandkids! I could easily be in Justin Beibers fan club and not know it. - JamesJM