It would be great to still file bugreports for anything you think could be improved in e.g. a distribution. I help out with Mageia. There's often various things which are simply overlooked or people aren't aware of. Obviously your bugreport could be ignored or not dealt with, but it doesn't have to be. It's a small investment to hopefully (years later) have less things to deal with.

I do the same when packaging upstream software. Sometimes there are build problems due to configure(.ac) not checking for dependencies properly. I'll then open a bugreport that these checks should be added. All that small stuff helps quite a bit.