Hi, regarding the North American witnesses, I am not sure if there are any, but they are definitely not among the more active ones. Regarding TRX payouts, there was an announcement from the Steemit team about the suspension of these payouts. Since they are suspended and not completely cancelled, we are still earning TRX, but I would not expect that we will ever receive them. I think this was the first step towards canceling the integration of TRX in Steem.