I seem to be unable to load all comments for a YouTube video beyond the 10th page.
Take this video for example. When I click on Show More at the bottom of the page and on each page after, it will only load up until page 10 or so, after which it will only ever display an empty page (screenshot here).
It appears that the comments go on for 123 pages, as requesting page 124 gives a Bad Page Number Error. (This makes sense as each page displays 500 comments and the video has ~61,300 comments; 61,300/500 = 122.6)
What's the deal with not being able to read all comments? Is this an error or an intentional limitation? I know the API only ever returns 1,000 results on anything, but the webpage goes well past 1,000 comments before it stops loading the pages.
EDIT: It appears that sorting comments by thread will allow significantly more pages to load (~45), though still not all of them.