On my blog (http://sig.levillage.org/) equipped with WordPress 0.72, when someone posts a comment containing an HTML link with an URL containing an ampersand, this URL gets mangled... Some characters (like the &) seem to be systematically escaped. IMO, this is a bug (not a feature). The escaping function should not escape ampersands in URL when the URL is a value of a tag attribute. What do you think ? Did I miss something ? Is there currently a workaroung ?