I used o3 to profile myself from my saved Pocket links

I'm not on pocket because I still don't know what it is. Just that it's yet another in a string of services my various flavors of web browser have tried pitching to me over the decades, and because it's hosted by a third party and apparently piquantly of interest to somebody else that I use it I tend to pass.

Although I am at least morbidly curious: what is it even?

My best hot take guess is "it's bookmarks, but probably even less useful somehow".

It's a read later service, which was originally called Read It Later. I guess they should have stuck with the old name, if they wanted increase transparency for newcomers.

It's not less useful than bookmarks, of course. It's more useful because they fetch and save the content, and they present it in a reader-friendly (ad-free) viewer.