Upwork getting worse for employers?

Long time up work employer here.

Years ago I felt like I could put a job post up, interview a few folks and have a pretty decent chance of it working out to my satisfaction.

Everyone I've tried to hire recently turns out to be sandbagging bozos with over hyped resumes and no sense of objectivity or accountability.

Upwork doesn't seem to care about this.

Even people I've given bad reviews to are reputed to have a 100% job success.

Yeah sure.

Upworks time tracking utilities seem to be easily gamed.

I just don't think the skill set benchmarks are believable anymore either.

Are other employers having the same experience? Is there a trick to making this website work better or is it dying?