I remember when I moved from the northeast and heard the positive anymore for the first time. I assumed the speaker was just somewhat dim, or maybe suffering from a minor stroke.
It turns out this is an established construction if you venture away from the west and best coasts...
Weird, I've never heard this either and I grew up in Michigan (not quite "positive anymore" territory according to Wikipedia, but certainly in the neighborhood).
I believe it, I'm just always pleasantly surprised to learn about common things that everyone but me seems to have known about.
"Anymore, nobody at Apple cares"
[O] https://en.m.wikipedia.org/wiki/Positive_anymore