When is a tweet no longer a tweet?

Twitter is atwitter with news that the social network built on brevity is aiming to abolish its 140-character count for a massive 10,000 limit. What happened to less is more? Here are fewer than 140 characters on why that's a bad idea: Just imagine the kind of exhausting, cringe-worthy, all-caps rants that someone like Kanye West could go on with 10,000 characters. Yikes.