Brian from Medium has not emailed me. But I don’t feel too bad. Jake from State Farm still takes my calls.
I am not sure what triggered the filters. Although I suspect that location could have something to do with it. Back with the membership beta invites they did state they could not yet work with bank accounts outside of the US. I even saw some remarks on Medium they couldn’t accept payments from bank accounts outside of the US in the beginning. This “initial launch” could very well have the same sort of limitations.