Non-grammarians could not give a hoot, but ELU is not directed at them. And of course the OP specifically requested with regard to the POS of "here" and warrants an answer determined by recent considering. They don't seem to be consciously mindful of The principles that they're adhering to. (For https://johnnyeoveo.blogitright.com/33912925/the-smart-trick-of-anyarticle-that-no-one-is-discussing