I guess I’ve just never seen the combination of lots of writes AND lots of validates_uniqueness(or whatever db validation) AND the writes are updating the uniqu

I guess I’ve just never seen the combination of lots of writes AND lots of validates_uniqueness(or whatever db validation) AND the writes are updating the unique fields (due to dirty attributes / partial updates). So it’s never really been an issue. If that’s been a problem for you I totally believe you, and everything you say about a fix all makes sense.