Originally Posted by kebosabi

I know it's a long shot, but perhaps DCC can also be one option that can be automatically set by the cardholder side in the issuer database from their online account.

1. You go online to your credit card account
2. There's a DCC section with an optional tick mark that says "always decline DCC when offered"
3. Every transaction abroad then will be charged at the local currency rate rather than DCC, no matter what the POS does. The issuer's database in which the cardholder has already preset to decline all DCCs will triumph all selections done by the POS whether hardwired or pre-selected or not.

If enough cardholders complain to their banks to have them start offering this selective service within their online account, then it can be done. Just like the EMV conversion, the first bank that is able to bring this ability will gain the most saviest of all international travelers and will get a head start against their competition.