Although I have gotten to the point where I can sometimes recognize certain posters from their content (Eliezer, Clippy, and Wedrifid mostly).

Some anti-kibitzer users have reported mistaking me for clippy at times! :D

I don't use anti-kibitzer so I have to allow for hindsight bias - but I'd be willing to bet that I could pick nearly every comment by HughRistik and, if reading with the context as opposed to just the recent comments feed, most of Vladimir_Nesov's too. Oh, and a lot from Perplexed and timtyler. Picking Alicorn's posts based on most of them these days being 'speaking as the Word of God on Luminosity fiction' would just seem like cheating. ;)