@aral At least for Twitter, this is not true. Yeah, the page exhorts you to create an account - but it *does* show the post. At least on desktop; maybe it's different on mobile.
@bontchev@aral it doesn't show the comments though, so you can't see the full post if someone divided it into multiple subposts (the 1/3, 2/3, 3/3 thing in replies)
@bontchev@aral yeah on mobile it doesn't a lot of the time. I get around this by toggling the "view as desktop site" on my mobile browser. This also works with instagram and Facebook sometimes. But sometimes it'll still redirect you to a login page.
@philipshiomi@bontchev@aral Last I heard, if a post gets a certain amount of engadgement, it becomes fully public. Tho that was a long ago, I heard that.