The discussions led to a decision theory workshop and then a decision theory mailing list, which quickly became home to some of the most advanced work in decision theory anywhere in the world.

Please, please, please stop calling the current theory "advanced", much less "the most advanced work in decision theory anywhere in the world". This is in many senses false, and in any case violates communication norms.

Yudkowsky summarized some of these results in "Timeless Decision Theory" (2010)

Yudkowsky's paper presents his own results, not the results produced by the discussion on LW/decision theory list. As I understand, LW had little impact on TDT (as it's presented in the paper), instead it produced the many variants of UDT (that build on some ideas in TDT, but don't act as its direct further development).