I had a piece in this publication. No cost to submit or after, but you do have to pay for a copy of the publication if you want it. Not required. Very professional and a really wonderful curatorial review.High quality work throughout the publication as we.
Not sure. I’m interested to know too. I would like to ask though, why do you think they may be? Like, did they contact you or did you find them? If they contacted you, that could be unsolicted and that may mean they are a vanity one.