I disagree with your stance on this for various reasons. Recording seat numbers and cancelling tickets? That's bang out of order under any scenario and you've been alone in saying this on several occasions. Are you a steward per chance ?
You know as well as I do the club have completely ignored the dynamics of the NS and its years of 'evolution' by deciding where safe standing should go without doing their homework.
The first place it should have gone is the block where people have stood for years and where the club have accepted that people have stood for years and is actually part of what the NS has morphed into with zero complaints from elsewhere. They could have incorporated less rows up the NS if there was a minimum allocation, which clearly there wasn't, they've just made it up.
Those same people you want banned if they don't sit are more than likely ST holders who have stood there for years and thus have no option to move into the safe standing area as they wouldn't have been offered the option to move.
So introduce safe standing and let them stand until the end of the season and take things from there. Nothing will happen, despite the alleged threats.