Trying to figure out who is Sam Altman, found that he's not the one who says truth:
https://www.reddit.com/r/startups/comments/2hx57k/sam_altman_is_investing_in_reddit/ckx0lqm
https://np.reddit.com/r/IAmA/comments/3cudmx/i_am_sam_altman_reddit_board_member_and_president/csz1nx2 (maybe doesn't matter if you believe the "EDIT")

Looking at who is posting about him, found /u/SuperbCrew who is currently shadowbanned.

Looking for him, found his fake: /u/scanrecipesapp -- https://www.reddit.com/r/Entrepreneur/comments/4co0tc/what_is_the_best_way_of_marketing_a_mobile_app/d1k9wqc