I think all of these concerns that startup commenters keep raising about overhear.us is generally unfounded. Getting blocked at work is not the end of the line (it's a great thing if it reaches that point), and receiving registration confirmations at your company email isn't going to be a big deal either, I think.<p>These comments about its simplicity are ridiculous, even. Users don't care. They're not all browsing TechCrunch looking for the most complex-sounding startup to use. Simple, intuitive, effective design is the hardest thing to get down.