In short, it hurts the product's transparency. Users don't really understand who gains and loses by its adoption. Gold bugs hoard gold because they don't trust the government. Maybe I'd be a dollar bug and hoard dollars because I don't trust Satoshi (or trust him less than the Fed). But I can't even figure out if I don't trust Satoshi or not because nobody knows who he is and what his/her/their long/short term intentions with the alleged $100M bitcoins Satoshi controls.