YouTube defaults to showing comments sorted by “top comments”. Is there a setting somewhere that lets you change your personal default to either chronological or reverse chronological, so you don’t have to find the little menu-thingie and change it on each screen for each video?
As I understand it, the default’s a setting that the video uploader specifies, I don’t think you can change it for yourself - at least, there doesn’t seem to be any easy way. I have heard of 3rd party sites that may let you do that, but not sure of names.