Pittsburgh pro is definitely a name brand. Much like Hyundai or Kia is a main brand.
All of the name brands that I mention happen to be very cheap and extremely low quality yet they are all name brands.
Just as a small amount of people will buy a Hyundai or a kia and be very happy with the vehicles performance, there are many many people that are happy with the performance versus the price of the Harbor freight Pittsburgh pro line of tools and even some people that like the base Pittsburgh line of tools.
Shockingly I'm one that actually finds many of the Harbor freight tools that do not have moving parts to be very satisfying.
I started life as an aircraft mechanic buying snap on tools then I was an auto mechanic for a while buying snap on and Matt CO tools, and then I moved to a different career and started buying Craftsman tools. Now I primarily by Harbor freight tools and I don't find my tool breakage history to be changing much compared to what it was while I was spending 20 times more for my tools.