One of the thing that must be taken into account is that fidelity is a way for companies to gain access to personal datas on consumers which is a great thing economically speaking for them.
A system like Gatcoin would prevent the collection of personnal datas by the companies or not ?
I don't think that Gatcoin will be collecting personal data. I think each individual company will , with their promotions. but these are always optional, if you don't want to give your data, you won't have to.
on the contrary, safety will be on the highest level, in this the advantage of blockchain technology.
GATCOIN perfectly will fit into decentralized crypto world