Ingrid

It isn't! But having spent some time in online writing circles, there's a certain type of person that just wants to be An Author. They're not really interested in books or even what anyone else is writing and writing groups are just as excuse for them to make everyone see how they're Writing A Book. Sometimes these people can even be good writers (at least when it comes to a specific field of writing), but at the same time they are also incredibly incurious and detached when it comes to literature. Their idea of a "book person" is something we'd see in a cliche old movie, because books are essentially just props for them to promote themselves and they assume everyone else is pretty much the same.

Now obviously this sort of person is a minority and not everyone who writes (even badly) about Book People is like this, but these people definitely exist. I've met a few, and read about even more. You'd be surprised how much work some people are willing to put into something that they think will make them an Important Person.