This seems easy enough to test. Someone just needs to put up a page which changes the in-page TITLE to something new for every hit, and then let someone submit it. Then see if it changes, and what it changes to, and when. Then work backwards from the server logs to see who or what is doing it.
If it's a bot, you could have some random gunk in there, and it would flip over automatically. If it's human, they might not accept a (hex|base64|...) encoding of some magic number. Of course, said human could also read this, know what was going on, and modify their behavior accordingly.
If it's a bot, you could have some random gunk in there, and it would flip over automatically. If it's human, they might not accept a (hex|base64|...) encoding of some magic number. Of course, said human could also read this, know what was going on, and modify their behavior accordingly.
Tricky.