[@Mahz] Maybe a bit of a stupid point to make but it should be an easy fix:

a lot of bbcode features are currently missing from the cheatsheet. For example [code][h1]blabla[/h1][/code] is mentioned but [code][sub]this[/sub][/code] isn't. I didn't know of it's existence until I saw the raw version of someone who was using a different font. I was wondering how that was possible and it was because of the sub tag. Another one is [s]strike[/s] which is weird because it has been in since, like, the start if I remember correctly. 

Not too much of a glaring issue obviously but, as someone who enjoys the everlasting hell out of bbcoding posts and threads, these kind of additions to the cheatsheet would make me more aware of what I can use.