The Greatest Hits page (like the one on Stack Overflow) displays 1000 items with a page size of 50, but has 21 pages:
As a result, the last page is always empty and should just not be included.
Additionally, anonymous users are presented with a JavaScript error on any page number, as answer-loader.js
attempts to call StackExchange.vote_closingAndFlagging.init()
which is undefined for them. I'm not entirely sure what that script does off-hand, but might be remnants of the functionality removed in the fix for this issue?