Travel vetted each applicant, so you'd know that you were probably not visiting a scam site.
Tel was a little different, and more of a registry, but again...not malicious.
Us was more standard, only requiring that you be a US resident to register. But because it was a govt contract, any whisper of a domain being used maliciously was met with an audit that would shut it down if you couldn't provide a passport. It wasn't perfect, but better than nothing.
It would be nice if more TLDs audited registrants or restricted registrations in some way. A TLD that gains trust is more likely to gain adoption, IMO, even if it is a gTLD.
Instead, it seems to be a giant money grab from all parties involved, which has greatly hurt both trust and adoption.