At the very least, I haven't looked at my facebook in over a month, and quite realistically probably not at all since I started using Steemit. I did invest some personal money into it, but since steemit has better ways to earn steem (contest, get payed for work with SBD etc, etc) and I don't have a lot of spare money, I haven't invested much of FIAT (though not for lack of believe in the platform).

What have I done for steemit ? well, I've brought my good natured self to the platform, making all of your stays more enjoyable. Then there's my designskills for hire and the fact that me and a few buddies are working on some supersecret project that we'll announce soon enough as well :)