I must be the only one who thinks this is a good idea (not the 10,000-char limit in specific, but something much higher than 140-char). Some of the most interesting ideas I've seen on Twitter were in tweetstorms, which is a pretty nasty and ugly hack itself. Proponents of the 140-char limit usually cite some notion of terseness and thought-density, but I see more half-formed ideas and deliberate grammar/spelling mang…
I'm pretty sure those arguments and "shit-storms" are occurring everywhere there is written text on the internet, regardless of character limitations.