I'm going to go out on a limb and suggest that Tor isn't a browser we should be using everyday but instead only in very specialized cases where one needs to hide or obscure activities.
Most services out there that we login to would instantly expose our identities just simply because they don't have the level of security to really protect our information. Hence, if I'm going to go check my email, my bank account balances, my Facebook feed, or anything else that personally identifies me, I'm going to use my everyday, normal browser. Thus, if I'm going to participate in Stack Exchange, I'm going to use Google Chrome.
The Tor browser has some pretty specific guidelines for best results: Don't use Flash. Don't use other insecure network resources when using Tor. Don't login to services where your identity is now associated with your browser, browsing session, or IP address. Therefore, it seems reasonable to assume that, since this is a public Q&A site just like any other Stack Exchange Q&A site that must scale with the rest of the network, that such a request would consume resources unnecessarily for very little gain.
In short, I won't be using this site with Tor as that's not really the goal, at least not from my perspective. Hope this helps!