Hi Ray, I am a newbie client with a terrible engish and without any hiring since now.
I can't judge the systema because I am newbie, but... This particular thing you mention, I do not like at all.
Free market, ok but...
If the clients can put a non sense 5 dollar for logo, then this obviously et the contractors to shot 1 dollar / hour.
This is IMPOSSIBLE.
It don't care if a designer lives in Bangladesh, and if he is a beginner...
1 Upwork fix a MINIMUM RESPECTABLE RATE, for example 20$ to logo (because in Bangladesh a beginner coud be work for 4$ at hour)
2 the employers plays without fair to ask 1$ to make a site, then the contractors play wihout fair to swear on the bible they are a guru, and worke hard and in 1 hour make your site for tomorrow.
I call this, Jungle, not free market.
And I NEVER will hire a contractor I see made logos for 5$, because he not seems professional.