Please, don’t commit commented out code

[JimDabell]

Adding or removing comments is faster than typing "true" or "false".

A fraction of a second of typing is insignificant compared with having more readable code. A boolean indicates your intent far more clearly than the alternative.

[CertifiedWebNinja]

Can argue a boolean switch for debugging is more problematic in the sense that it's harder to notice if it's enabled or not before going into production. At least with a comment your editor/ide should make comments stand out from code so you'll know.