PNAS has garnered itself a nickname among my peers, for these exact reasons. The worst is the sponsored paper section. I have encountered some real garbage in P

PNAS has garnered itself a nickname among my peers, for these exact reasons. The worst is the sponsored paper section. I have encountered some real garbage in PNAS papers. However, I've also encountered real garbage in other respected journals, like Nucleic Acid Research. Journals are a business, and most of them go after what's catchy.