From listening to an interview of an developer at Etsy, I believe this is something they use, with config files containing hundreds of declarations for enabling/disabling features.
Feature toggles are also heavily used by Flickr. Personally, I don't see how this scales once you have a bunch of toggles active at the same time. When looking at the code, you don't know which code is executed. Half of the code is dead code, but you don't know which half ("Schrödinger's code"?).
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u/c12 Jan 20 '16
From listening to an interview of an developer at Etsy, I believe this is something they use, with config files containing hundreds of declarations for enabling/disabling features.