> A downside is that although normally you'd want to remove old feature flags that become obsolete, this hasn't been done very often.

I figure this should be somewhat automatable since the relevant bits of code have references to the exact flag's identifier. Was it not done b/c nobody was incentivized in any way to spend any kind of time on cleanup?

edit: OK that might be a bit naive on the organizational side. Force everyone to give every flag an expiry date for review or something maybe?