I think the reason is that LibraryThing is significantly less UX-friendly than Goodreads. I use both; I use Goodreads to track what I consider "personal" readin

I think the reason is that LibraryThing is significantly less UX-friendly than Goodreads. I use both; I use Goodreads to track what I consider "personal" reading, and I use LibraryThing to track what I consider "technical", but the big reason I have it broken down like this is because LibraryThing is just not as friendly to a user as the alternatives.