in this answer, one of the quotes contains some latex code:
For example: $x^2$ vs (^2) ...
by which is meant
the original input doesn't use backticks to indicate the code (check it out via the edit function), but even so, the backslashes shouldn't disappear -- they don't disappear in other quotes in the same answer, e.g.
Other examples: \it vs the more modern \itshape ...
this sure looks like a bug to me.
(i didn't find any existing tag for "quote" so i concocted one. feel free to rephrase or otherwise improve it.)
edit: for the benefit of others who might run into the same problem, the
list that Werner gives in his answer appears to be complete (and yes,
backslash escaping applies to curly braces as well as to parentheses and brackets).
if you want a backslash to appear before one of these characters in a quote block
without using backticks, double the backslash:
\\( ... \\)
\( ... \)
there's a formatting sand-box for trying out things like this. (i should have looked there first.) it's community wiki, so don't be afraid of making an addition if you discover something new -- it could help the terminally confused, like me.