That's fair.

I don't know if it would have done me, except that in the past I've had several jobs (mostly call centers) where I had a decent amount of free time and relatively open web access, but sat in an area that was sufficiently well trafficked that browsing anything with lots of images (like a webcomic, which would have been my first instinct) was potentially a bad idea. Since TV Tropes is almost entirely text (or was when I frequented it) it was safe to browse at length. Of course, Wikipedia probably would have fulfilled this need as well.

That said, the other aspect for me is that I've always been an avid reader and oft enjoyed movies or TV, so I appreciated its ability to essentially say "oh, you liked x story? You'd probably enjoy y media because they share z details!" It definitely hugely expanded my media library.