As seen above, the tooltip for the moderator tag legend includes an escape code. Yikes! This behavior is exhibited on every meta site. The offending HTML code is shown below.
<a class="post-tag moderator-tag" title="this is a moderator tag; it can only be added to a question by a &#9830; moderator">moderator-only-tag</a>
It seems that the reason for this is because the ampersand inside the escape code is escaped. How does this even happen?