If you're going into this with eyes open, and in particular if you have some discussion style/approach ideas you'd like to try out for bringing a problem poster closer to constructive discussion, then I lean toward being encouraging.
My biggest problem I see is that the thread started just to review age dating with 'relative'/simple is at 73 posts and counting, and very little of it has to do with the bristlecone pine data because 'relative'/simple is off and running on one of his pet illusions.
While a {great debate} format would not prevent him from introducing plethoras of imaginary scenarios, it would limit the divergence from the topic at hand as other posters take on those fantasies.
My original idea was to proceed similar to the grand canyon thread by jar (that I have yet to finish, as enjoyable as it is), though not necessarily in a strict linear fashion.
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