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Looks like a mirror from @val_waeselynck’s blog http://vvvvalvalval.github.io/posts/2018-05-01-making-a-datomic-system-gdpr-compliant.html
I’m not a lawyer, and I’m not speaking on behalf of the Datomic team, but this seems to mangle a lot of Datomic’s value for a possibly questionable goal in the face of a rapidly evolving legal area, which may actually not require anything of the sort.
@U064X3EF3 maybe you would think differently if you worked in the EU, this stuff is getting pretty tangible there :) . In any case, I felt it was important to make people aware of this option so that they don't consider Datomic's immutability a deal breaker.
I also disagree about it mangling a "lot" of Datomic's value, from experience, and I tried to articulate that in the article (criticism welcome). As a comparison, IMO you lose much less power by adopting this approach than by moving from Peer/On-Prem to Client/Cloud.