Stack Exchange network consists of 178 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.
Q&A for work
Connect and share knowledge within a single location that is structured and easy to search.
I've noticed I'm not able to use key button formatting like <key>ESC</key>.
Has it been disabled? And if yes, why?
I'm sure is not <key> but <kbd> tags:
So no, the only issue is that you're using the wrong syntax.