Do not listen to everything you hear on this site. Lots of people getting great expereince at Pinnacle and moving to the major airlines.
Pinnacle is a better bet than Mesaba. Jet PIC has more value than prop PIC. No major airline flies props. So jet pic is more desirable.
Pure ignorance. Nobody cares whether your PIC time came in a Saab or a Jet. As long as it was turbine 121, then they're happy. Pinnacle is a festering sore on the face of aviation. Everyone would be wise to avoid it.