Firstly, I've seen a few people using
<kbd> tags to emphasise JSFiddle demo links, which goes against the W3C specification:
The kbd element represents user input (typically keyboard input, although it may also be used to represent other input, such as voice commands).
There are situations where
<kbd> elements could have valid links, so there's no need to strip them out completely, but I can't ever see a need for a JSFiddle link within them.
Should JSFiddle links be blocked from
The other thing is that there are currently no restrictions (or so it seems).
You can have an entire block of text within the
<kbd> tags if you so desired. which is silly.
You can also put images inside them, which seems a little unnecessary:
Does there need to be stricter formatting rules for the
<kbd> tag to limit anything which shouldn't normally appear within them?