Am I misunderstanding the nature of a dynamic connection? Doesn't it mean that you can't be tracked because you're a moving target?
One would think so — I certainly did — which is why I posted the "warning". Demdex (at least) seems to be able to set a cookie despite non-tracking preferences; manually blocking such offending seems to fix the problem.
Perhaps ganbustein and/or tacit and/or others more fluent on the subject could chime in.