I don't know your age, but from my experience, at least in the 1980s and 1990s, there really were real warring camps of Bayesians and Frequentists. People worki

I don't know your age, but from my experience, at least in the 1980s and 1990s, there really were real warring camps of Bayesians and Frequentists. People working on the same scientific topic who were Frequentists wouldn't even cite the papers of their Bayesian colleagues. Frequentist textbooks like A.W.F Edward's "Likelihood" would spend pages disparaging Bayesian methods. But I agree that things are much calmer these days with most people being pragmatists that don't care about being "pure" but use a mixture of methods from both camps.