If I like a picture, I like a picture. It doesn't matter who took it. And if I like an artist I like an artist whether they've been overexposed on the internet or not.
My problem with Maier is I've never seen anyone say she accomplished anything extraordinary. To me it would seem her picture taking was a manifestation of some kind of mental disorder. If you walk around with a camera and take thousands upon thousands of pictures over the course of decades there are bound to be some winners. That is not the hallmark of a great artist. I do like the fact she documented a lot of mundane things. I like documenting things too. I wouldn't call a lot of what I do fine art though.