We all know how neat, subtle and effective is the attribution for every edit made on wiki in page history. Is it possible to extend this (at least partly) to the offline activities of Wikipedians (like in organising Wikimania, for example)? Are there any best practices in this regard?

Thanks, Sundar    "That language is an instrument of human reason, and not merely a medium for the expression of thought, is a truth generally admitted." - George Boole, quoted in Iverson's Turing Award Lecture