Releasing rulebooks in digital format only so they can be amended, retconned and abandoned, leaving no permanent record is a really, REALLY bad development for players.

a close up of a man with long hair and a beard making a face .

ALT: a close up of a man with long hair and a beard making a face .

Sounds akin to the way 'buying' doesn't really mean 'owning' any more in a lot of online spaces. Expect online rulesets to vanish in the future when they don't want to support them any more.

That sounds like the whole fashion for 'living documents' I see these days where 'living' really means 'unfinished.'