I filed this under infrastructure, but depending on what we decide, it may be better categorized elsewhere. davidwalsh and I talked about building some sort of mechanism for rolling out changes, particularly UI changes, to a limited audience--either opt-in or randomized. There are a bunch of ways to do that. A simple one would be a special webhead, although as we are planning to redeploy soon that might not be the best. Others include a user preference and A/B testing. This isn't *crucial* for the UI changes this bug currently blocks, but if it's not very difficult we should probably attempt it.
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