Re: Swf signature
Yup, it isn't possible - and it damn well shouldn't be! I don't want a flash file that anyone thinks is "cool" hogging my bandwidth and deafening me at 4am with random music someone decided to put in there.
Same goes with youtube videos and anything else along those lines. It's not clever, it's not cool.
People seem to have forgotten over the years that a signature is meant to be a quick, simple way of signing off from a message - perhaps with commonly used information like PC specs in there. Heck, if you want to throw a couple of lines of obfuscated code goodness in there as well, fine by me.
Flash files / youtube videos / images however? A complete no-no in my opinion. If you really think something is that cool that everyone should see it, just place a link - then people will choose whether they want to visit it or not.
Save the whales, feed the hungry, free the mallocs.