[rhymer]

My takeaway is to avoid mixing the frequentist and Bayesian approaches. Choose one method: either follow the frequentist approach and avoid early data analysis, or use the Bayesian approach to compute posterior probabilities once data are available. Mixing the two without expertise can lead to errors.

[croemer]

Mixing seems like a straw man, why would one?

I don't see what's wrong with Frequentist approach with alpha spending. The downside is one needs to understand alpha spending. But doing Bayesian without understanding it can be just as bad.