No, I don’t think it’s possible to do it that way.
If you wanted to add an extra criteria to TL2 like ‘x posts in last 30 days’ where people would be demoted if they didn’t meet the threshold then it would be possible to do it site wide using the method I mentioned above.
But I also think there’s definitely an ‘is it worth it?’ calculation you have to weigh up before you dive in. 