There are anonymized credit card services, including pre-paid and other solutions. The following is based on notes at least a year old, and I haven't tried them:
I didn't downvote, but some of those only help so much. Your name is still in the track data, and for credit you generally have to input a zip code. For online purchases, you're entering an address as well.
Yes, but even if a panopticon could theoretically piece your entire history back together, using multiple companies to keep the silos separate is one way to reduce the ease with which this can be done.
That's why it's such a big deal when companies sell your info. Merging silos dramatically increases the amount that can be inferred from each piece of information.
* Abine
* Final https://getfinal.com/
* Privacy Inc. https://privacy.com/
Also, many pre-paid cards require the user to identify themselves before the card is activated