Heck I would settle for just seeing a post from a person once I my feed, instead of seeing the last reply, then other posts, then the second-to-last reply, then after a lot more scrolling finally seeing the original post.
The problem with chronological feeds is that prolific posters in your timezone just take it over and you never see stuff from people in other timezones or infrequent posters.
Nah. I would hate to live in a country that bans personalized ads. It would be like living in the 90s watching cable TV seeing completely irrelevant tampon and baby ads as a single dude.
Personalized ads are much less annoying than the "spray-and-pray" noise we used to deal with.