Now that RingCT is on and transactions are many times bigger, would a mixin of 1, for example, be safe enough to keep a good level of privacy? I'm mainly asking because many pool operators have decided to opt out of RingCT (and usually have a mixin of 3). Some of them are loosing money on each block found.
Lowering mixin lowers tx fees, so I'm trying to know if it's a better solution than opting out of RingCT. Thanks!