bkubicek/Marlin — comment on commit c96c076c1892ba80565ff2f7b821f8d3a9a5ea0b
File:  line 0
By lampmaker:

I wonder if it isn't better to keep these values at 0 by default; there is no discussion that a higher number yield better prints, but I believe this is a setting you want people to make consciously. It's a rather tricky thing if you're unaware of this setting, having problems with skips/missed steps (e.g. due to wrong stepper driver settings) and find out that lowering feedrates doesn't improve things.
I'm always cautious about implementing 'smart' features in software that work fine until you want to do something unexpected and the feature starts to work against you.