I've just found out a silly bug with bold formatting. This can be easily performed in the BBCode editor, by applying the same formatting code multiple times, or by mere copy pasting (which sometimes messes with where the formatting tags get placed) Here's a demonstration: This is normal text This is normal bold text This is double bold text There are no noticeable differences if you apply a third bold tag. EDIT: Turns out this is a browser specific error. Here's what it looks like on Firefox for Windows Desktops: Some browsers may just ignore the error.