I remember reading some time ago that the Nazis had a method of trapping communists that went like this: They'd put the suspect in room and carry on a conversation with him (all males, as I remember). Then, after several hours of conversation about any and all kinds of subjects, they would tote up the number of times that the suspect used the word "concrete" -- evidently a favorite left-wing buzzword in the '30s. If the "concrete" cropped up frequently .... off to camp went the suspect. I think that identification by buzzwords, habitual misspellings, etc. could be used to identify anonymous posters. Sentence structure is also revealing. Le style, c'est l'homme, said Voltaire. Of course, it all comes down to how much time and effort you want to put into proving, say, that SBoxx=LDetweiler. And the method is fallible. I've seen some pretty wacky schemes "proving," by word or grammatical analysis, that Shakespeare's works were written by Francis Bacon, Chris Marlowe, Queen Elizabeth, etc. It's very easy to be misled by your desire to prove something you're already convinced of for other reasons.