The cycle of disbanding that keep casuals from doing content

[NyarukoW]

EXACTLY.
And what is the best thing a player can do when "that is on SE"? Maybe... open a thread in the official forums?

SE most likely has the stats on clears for T6-T9. Putting these on the DF before there is enough players with clears to seed it with a base level of experience will probably lead to more futile frustrations. Or it could be that SE has schedule it wants to maintain.

But I can only imagine how much rage quitting will happen and it will probably be even worse than that. There is common saying for SCoB, "it is where your friends kill you not the boss." Just image voice is not pointed the right way and both healer are stoned in T7, or the red and yellow meteors are placed too close to each other on T9.

.. but the fact that some have turned into a players problem I don't

It is very much a player problem. Putting it on the DF will only move the problem to rage quitting on the DF. Perhaps that is better than not getting a party on the PF in the first place, but the problem is and always will be the players.

...The raider is this devil being with horns with an evil grin that continuously tries to find ways to abuse on the innocent.....

Even in your continuous war against these clear sellers ...

I never said raiders were the ones with horns. You did. I didn't equate them to the clear sellers, but it seems they get tied together by people claiming to be raiders but gladly selling clears. I'd be fine with the two being separate, but it seems you want to tie them together too.