As much as I like the game, and I'm sure the game is harmless, I hate this idea that as long as the people making it are "well known", that also means that they are trustworthy. Microsoft and Google are also well known and they are KNOWN for selling their user's data. As "anti-capitalist" as the message of this game and other MSCHF projects are, I wouldn't put it past them to not do something scummy now or later down the line.
Just because they are well known doesn't mean they are trustworthy.