I was checking the timeline of a question when I found out the title shows in capital letters:
TIMELINE FOR HOW TO HANDLE A HIGHLY PRODUCTIVE EMPLOYEE BUT WHO REACTS EXTREMELY EMOTIONALLY TO CODE REVIEWS?
I initially thought that this could well be because of an original upper case title, but it is not the case.
Then, I checked a couple of timelines more and this happens also: 1, 2, as well as in the answers: 1, 2.
I also noticed the title shows in capital letters in the review queues. See it in a close vote and first posts:
This is not happening in other Stack Exchange sites I checked.