EDIT: Killproof doesn't have to be an item you can ping and fake. You can comment your suggestions below. For now even an item would be better than nothing as a short term solution.
EDIT 2: So the conclusion seems to be that the KP we want are in fact several new titles so we can show off how many times we cleared a CM (instead of getting the old KP back)
Would you like to have it back or not?
I mean, there's nothing toxic about wanting to do content with players of a similar skill level.
It's borderline harassment when Anet is trying to push experienced players into doing CMs with clueless people.
End game content simply has some prerequisites. Why is it ok for Anet to do their hardest to match players of similar skill in PvP, without caring much who I end up doing end game fractals with?
Why not encourage training runs? Give currency for failed runs too like in raids or something. Use your imagination instead of inconveniencing others.
There are many, many problems with fractal newbies and there's nothing wrong with refusing to carry them or with refusing to teach them if it is not a training run!
Some of the issues with people trying to join CMs:
In content where one person can end up wiping an entire party there is no room for randomly throwing parties together.
KP in its current state (pinging items) is at least a somewhat useful indicator of a person's experience in certain content.
Sure, it's not perfect but the pros outweigh the cons imo. An improved system would be even better.
I come home from work, have limited time to play and want to do a somewhat clean CM run. It's not okay for a random clueless guy(s) to keep ruining that run for me.
Personally I'm lucky to have a static, but if I can't play when they can, I'll be forced to LFG and more often than not encounter some of the issues above! It is not ok to proliferate such situations.