APB has never been a competitive game, considering that it's an open world game where you can have unbalanced missions with an unfair advantage/disadvantage.
These kind of issues are becoming too common, something is constantly broken, they should start testing that everything is working before they put it out.
I've reported dethreater once, this player even admitted on a chat doing so during a mission, this player was in our team, i'm not sure if there was a temp ban given to this player.
Considering how small the current population is, it doesn't matter if we can temporarily join any district without restrictions, those who want to abuse new players can do it regardless of segregation, as they have done for years.
At least now we don't have a mass dethreating with this low population, as usually bronze districts are most populated forcing players to dethreat so they can play.