Please add clearance condition to Group Finder

[NyarukoW]

...
I sell runs, and this checkbox would really not do anything for me in terms of getting more sales. ..

Of course you wouldn't tell people that it would increase sales, just like you wouldn't want people to know about the price increase you'd be getting too.

How well it works in real life is vastly different than how well it works here. ...

I don't know how you define different. The odds of it working is extremely low in real life and in game. SE knows this and they will not look to segregate and divide up the playerbase that this clearance condition will induce.

...They shouldn't be forced to enter an instance and find that some people don't meet the requirements, and have to go back out and repost their party finder.

In what ways are they forced? The requirement that people must perform. The clearance condition is NOT going to solve that. People that bought clears are repeat customers, and they are still clueless as ever. The requirement is there to make the sales more desirable and profitable.