Naming convention for R6 class generators?

r6

#1

Just a quick opinion poll:

Advanced R recommends UpperCamelCaseNames for R6 classes (while still retaining snake_case for fields and methods). I find this a bit silly, and the r-lib packages that use R6 classes (progress, processx) do not follow this convention. Any updates on that? (and any good readings on R6 classes that go beyond the vignettes and advanced R?)