I've held my tongue for a while about this, but today I'm done being nice.
While this has always been a problem it's gotten steadily worse since arbitrations became a thing. I have a very inactive clan, and those that are very active don't do: steel path, arbitrations, sorties, Archon hunts, or circuit. So I have to do public parties, in public parties I've had hosts go through arbitrations until Adaptation drops and they go "LOL bye" in group chat and abort mission screwing everyone as the mission was no longer available so it kicks us to the orbiter. (this is why it took over a year for me to get adaptation) In circuit people will do one rotation select continue and then with one second left switch and cause the party to disband (if they're host) or leave the rest of us in a position where we have to abort. Today I ran sp circuit for 45 mins, the host left and a second member got kicked to their orbiter so the two of us that were left doing excavation with dps frames with no crowd control and had to abort.
This type of bs happens EVERY time circuit resets and makes it take twice as long or longer to finish for the week. I NO LONGER run archon hunts unless I can solo all three missions because it's not worth the effort (so no excavation, defense, or disruption) same for sorties. I don't run arbitrations unless it's survival because I can just solo that, but I can't solo sp circuit so I'm done with circuit as of today UNTIL WE GET A BLACKLIST so we can NEVER end up paired with these types of people ever again. There is no point to doing group content because I will just burn time and energy to get absolutely nothing in return.
EDIT: Actually I'm just not playing warframe AT ALL until there is a blacklist.