And that's why Twitter is not doing as well as Facebook. Facebook doesn't need algorithms to know what you are interested in, where you like to eat, etc. You explicitly tell them in your info and by what types of articles you like and share, and what you post.

Well I’ve told Twitter that I hate Blockchain and think it’s all BS, yet I still get ads for ICOs and “Uber for the blockchain” - whatever the fuck that is.

Again, I guess this is because Twitter sucks at advertising.

Twitter is the same, except even more-so. People tweet 10+ times a day, update FB status infrequently.

All the things FB has done to extract things like resturant data etc are product development they undertook. Twitter spent 10 years moving form 140 characters to 280 instead.

Even if that is true, when people sign up for Facebook, they fill out a bio telling FB their work history, their school affiliations, who their family members are, their hometowns and current cities, they check in where they are at, tell FB their favorite books, music, tv shows, thier gender, relationship status, thier sexual preference, and thier political party affiliation. Everyone doesn't fill out everything, but a lot of people do.

That's exactly my point.

There is no reason why Twitter couldn't have done the same 5 years ago. And no reason that they can't do it now.

(Also people are just as likely to follow and talk about things like tv shows and music and politics on Twitter as FB)

Plus the fact that they can also average your interests from information volunteered by your friends and family because "birds of a feather, flock together".

IOW, Twitter followers may be total strangers to many IRL, unlike Facebook followers.