

I think it’s meant as kind of a joke, but both are shit really.
Shared might indicate they’re able to keep some level of consistency, but since it’s only consistent in the way it produces bullshit, it’s stil useless (and the worst part is it might be more convincing).
tumblr has had an incredibly annoying one since forever, the login wall. It shows up while scrolling down about half a screen to tell you you can’t browse any more of it without an account. There are greasemonkey scripts to remove it, but every once in a while tumblr changes the way it’s displaying that shit, so the scripts have to be updated.
(Yeah, I know, tumblr. Don’t judge, I used to download a lot of Sims custom content, and a lot of sim modders like tumblr, for a reason I still don’t fully understand)