The site setting called tl3 promotion min duration should do it. It defaults to 14 (days), but you can set it to a higher value like 9999 (27 years), so someone wouldn’t ever be demoted.
The site setting called tl3 promotion min duration should do it. It defaults to 14 (days), but you can set it to a higher value like 9999 (27 years), so someone wouldn’t ever be demoted.