I guess thats the end of free promotions for steemit then
I had a few hundred business type cards made with the old steemit logo on that i would give out or pin on the customer boards in the supermarkets and other places.. I guess that's the end of that then
What you could do, is contact Steemit, Inc and show them the card, and ask for their written permission to use those cards for that purpose.
Going forward though, absolutely it seems like they'd like you ask first, before you just do it. It appears they want to protect the way their brand is used and advertised.