In my opinion a guideline itself, may it be the best written and most informative probably won´t help.
people will read it at all (how many actually know that Garys Guideline does exist?) and even if a.net makes you read it, it will not work.
Look at all the information given on the addphotos page.
It is ignored every single day.
People read it and think: Yeah, right, i´ll try anyway...
...when they click on: "I have read and understood the above."
Of course not everyone will behave this way, but i think the vast majority will and already does it on a regular basis.
That's it! You people have stood in my way long enough. I'm going to clown college!