I stopped using PartMiner years ago, when they closed down all free access to datasheets.
Today I received an email from PartMiner which says, in essence, "our core business model is unprofitable, so we are now professional spamwhores. Your contact details are being sold to anyone we can find who will pay us a nickel":
If you would like to receive business or career related offers
> from PartMiner Information Systems, you do not have to respond
> to this e-mail. You can easily unsubscribe each time you receive
> an e-mail from us if you don't find the information worthwhile. To
> unsubscribe now, please scroll to the bottom of this e-mail for
> instructions.
This "vendor" should be boycotted.