Looking at the timestamps shows newest comments at the top, rather than at the bottom. Comments should flow from oldest at the top to newest at the bottom.
Example: https://pixelfed.social/p/trwnh/1416
The problem with that is that pagination is not finished, so you would never see newer comments if there were 10 already. I will change the order when that is finished.
"Load more comments" seems to work now, but comments are still in reverse order. If anything, the pages are loading in reverse order... the older comments fill in at the top, but the first page is still reveresed, leading to this: 0-1, 2-11, 21-12

Fixed in latest commits
Seems to be a regression as this is happening again.
Most helpful comment
The problem with that is that pagination is not finished, so you would never see newer comments if there were 10 already. I will change the order when that is finished.