Coffee Room (or rather, WordPress) oddities

Due to the “threads show a post count one higher than the true one to any logged-in user with a post in said thread” glitch, a thread with a (true) number of posts which is a multiple of 50 will display a link to an empty page for a user who has a post in it.

(Due to “namespace conventions” or some other term nobody knows, you can enter a page number for the main page, a section, or a thread that is greater than [the number of posts in the thread, divided by 50, rounded up], and it will display a blank page. For example, at this time, any page number higher than 371 for the main page.)

So, can anyone tell me about more such phenomena?

I figured there’d be such a thread already, but there isn’t! 🙂