The number of people who visit a phone forum is a fraction of a percent of phone owners. This thread has no statistical relevance for either side of the conversation.
I haven't posted in this thread until now but I've seen the same purple hue or tint in pictures in 2 situations that I can recall: outside at night taking pictures of full moon and in some caverns a few weeks ago. When it happened I either closed the camera app and opened it back up or I changed the focus point and the purple went away. No idea what caused it but it's not something that ever happened on G2, G3, G4, V10, Note 7 or my GF's G5.
That said, I've also snapped some great full auto pictures in those same situations.
I think the V20 has a great camera but it's not the best for full auto, take it out of your pocket, point and shoot photo takers.