An important thing to realize here is that it never really was a good idea to rely on DT. It was just a perceived view of a trust, not too well aligned with reality. There had been many scammers in the DT, so how trustable was it after all? So many reasons why relying solely on DT was and remains to be a bad idea.
It's just more obvious now why relying on DT is a bad idea, but DT still has use cases due to this forums nature of e.g. not moderating scams.

Edit: reworded etc.