It isn't a tangential annoyance when a site blocks you from reading the thread without logging in.

I agree with you, but you’re doing the same thing that the rule you’re quoting tells you not to do.

I always link to nitter's mirror of the twitter thread in question, just because it doesn't require javascript to view.

Agreed, I find it irking that GP is attempting to force others to follow his own standards. So much for free speech.

I have to be very careful how far I scroll down when reading threads. If I scroll a little beyond the last reply, I get a "See what's happening" full splash screen. Extremely frustrating when you have these X/? Posts and have no idea when the actual end is without checking for existence of the next.

Try scrolling down. Once you barely touch the bottom of the thread you’ll see an overlay that you can’t get rid of. Or at least I did.