I am really annoyed by the huge images in some linuxfans users’ signatures when surfing the forum, so I decided to hack a user script using Greasemonkey before the moderators of the forum take any actions.
The XPath is really powerful to manipulate the HTML DOM tree. The signature
image is in the the last span element with class attribute equal to
the td element:
allElements = document.evaluate( "//td/span[@class='postbody'][last()]/img", ...