@redhouse: ...no, because at that point we've actually metagamed. Just because we used a medium that was then covered up doesn't matter. We could have arranged the same thing via PM, should we ban the private messaging system as well?
"- funny, I thought I did address that. Anyway I don't agree with that rule, btw."
Maybe I missed it, and if so, I do apologize. What did you say in addressing it?
"- there are a lot of very young players here. And not everyone has your advanced understanding of internets."
I'm twenty, so I'm almost certainly one of the younger ones on the site. As for advanced understanding, though I appreciate the compliment, I wouldn't say that knowing that pictures on the Internet can be edited is especially esoteric knowledge, and once that knowledge is present in the individual, the failure to apply it to a screenshot of an alleged Diplomacy communique is squarely a failure of the individual.