But remember that Steem is registered trademark
IIRC, Steemit is a registered trademark but Steem is fair game. I vaguely remember a post from either @ned or @steemitblog to that effect at the time when they switched from blue to green and introduced the Steemit logo.
It's how I remember it as well :-)
Damn, maybe it was just the three-swooshes logo that was fair game.