So I had made a few threads about Libertas. Some asking questions (like how to make a vendor account), others just asking questions about the market itself. Figured I would share my story.
I ended up making a vendor account by first making a buyer account and just PM the staff my signed PGP key with links to grams and pics of my reviews. Like 2 hours later they made that account into a vendor account!
Consitering it took Aero like 6 days to do the same thing I think they are (libertas) my new favorite. I also so on there subreddit that they only take trusted vendors which is very cool. The only other site I see actually do that is CGMC.
Anyway, that was my experience with them.
if it had multi sig id be all for it.