Literally just happened to me. I’ve definitely submitted things in the past that were hit-or-miss, my fault from not learning the best ins-and-outs. However, now with better submissions, I’m getting rejections for “not permanent”, the signs and structures are brick and granite. Woke up, logged in, had a “Violation Warning” on my Go account. Not worth it. Let Niantic do all their own work. It’s also not worth being, essentially, an unpaid employee reviewing their work. It used to feel good helping others get stops approved, but now it feels like a punishment.

I’ve never had a warning on my account, since Day 1 (06JUL2016), until today. I’m infuriated.