I haven't been active on another platform for years, but would be again if they made some improvements. If someone instead tried to force me to be active or culled, I'd probably delete and never rejoin.
There are models I know that have become inactive to bring up very young children but may actually come back and model when in suits them. How do you think they will feel if all the references they earned years ago are all deleted just to preserve a photographers view of neatness. Will that attitude be enough to persuade them never to come back? The site gave you tools to filter them out completely.
Yet you don't mention all the lurker accounts that have never done anything, have 4 random images but keep looking at profiles. Some have been active doing just that for over 8 years. That is far more annoying as those people look nothing more than image harvesters and never did anything else.
The site should be protecting model accounts that were used as they have stayed and could be viable again. Too many get forced off the site by the poor behaviour of photographers.
If there were enough models for you to shoot, you wouldn't be worried about ones you don't want to shoot