he's looking for a donny or an ethan from the early days. very masc4masc straight passing dudebro type.
that's hella weird. i wonder if it might be patreon that has some sort of detection system where it blocks people based on certain info. like how on pornhub, you used to be able to geolock your own country, so that no one from your country could see your content. or maybe they will block certain debit/credit cards. it's odd for it to block you for no good reason. maybe you could reach out to patreon's customer support, say you were instantly blocked when trying to subscribe and link mark's account and they'll be able to tell you if it's an issue on your end or something mark has set up.
also, just went and checked to see if it said "no posts" or anything of the sort and saw the prices have gone up. his highest tier is now €31/month (plus VAT), which makes it €38. good thing americans have low vat, because jfc paying almost €40 for instagram type content is fucking insane