Disqus allows people with yahoo accounts to comment fairly seamlessly. This is good for Yahoo accounts, but it's bad for this blog. Over the past couple weeks, some of the least helpful comments have come from people using Yahoo. My sense is that Yahoo is so ubiquitous that it actually undermines the point of even bothering to register.
With that in mind, from here on out, I'll be deleting all comments from Yahoo accounts. If you want to participate in the discussion, I'd ask you to log in through some other tool. If you see someone commenting from a Yahoo account, don't even bother replying. I'm going to sweep it as soon as I see it.Personally, if it were up to me, I'd make you give your address and phone number. But that would be authoritarian, repressive and damaging to the free exchange of ideas. Wouldn't want something like that to happen.