It's interesting to think about optimal starting words, as some people might be more prone to thinking in terms of phonemes ("th", "ed", "sl") rather than individual letters. For this and other reasons, I imagine cognitive scientists would also be interested in the Wordle play data, as they can look to see which hypothesis testing strategies people people use over the course of game.

Also, one version of Wordle people can play is to pick the best starting word every time, another involves starting with a different word every time.