we do not know. Gab.ai is close to gabbai (jewish word) - I have doubt in my mind since I saw and looked up that connection. Steemit is on the blockchain so it is supposed to contain everything and not be censorable. MeWe is another one that promises not to track or sell your info.  It's like DuckDuck go in that sense. DuckDuckGo claims not to track, and people just trust that it does not.  Not sure how any of these sites could prove their honest at this point.