Have a look at this article about infinite scroll and pagination published on http://www.nngroup.com/, a reference in our field.
Summary: Endless scrolling saves people from having to attend to the
mechanics of pagination in browsing tasks, but is not a good choice
for websites that support goal-oriented finding tasks.
an excerpt (emphasis is mine):
Infinite scrolling has advantages, but should be applied with caution.
Take into account your site’s content and the user’s motivation.
Endless scrolling is not recommended for goal-oriented finding tasks,
such as those requiring people to locate specific content or compare
options.
[...]
The worse offense of infinite scrolling on the desktop is that it
plays a nasty trick on users. Infinite scrolling breaks the scroll bar
by causing it to display the page length inaccurately. Believe it or
not, people still use the scroll bar. People rely on scroll bar to
tell them how much “work” is left. It’s not nice to tell people that
they’re almost done when they’re not. Play nicely.
Edit : as stipulated by Pixel Elephant in the comments, this answer does not really respond to the question. Since some people upvoted it, I will leave it unless asked not to.