Seems wortwhile to update this. Maybe even have a running calculation that is updated on each data release? It provides an intersting context for understanding monthly and annual temperature anomalies.

I think most people consider it settled science/argument at this point. As a veteran of the 2005-2015 internet flamewars on climate science it definitely just bores the living shit out of me to even think about it again. And all the climate science sources from that period (Skeptical Science, Real Climate, Tamino's blog) also don't publish anywhere near the amount they used to.

If you disagree, then be the change you want to see in the world... Setup a website, pull the data, build your own model and publish it. Once you've got it going, I'd guess that Tamino would be more than willing to correct all your mistakes in your model.