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Until Max himself mentions Steemit on his site or show or twitter, I not gonna believe it.

Proof:

It was me who invited him to check the AMA post.

That was in response to the guys book. Steem just happened to be in it. He has not personally mentioned steem

What book? He retweeted octos tweet saying steem would be a "btc killer app".
Yes, mentioning it in own words would be another level, but you can be very sure that he's watching here, and I'm pretty certain the interview request is real.

Yes, Ned said it was MK's account.