[kenjackson]

You don’t care anything about who the money from your purchases flow too? In most cases I don’t, because I don’t have much insight into it. But to the extent that I can keep my money from going to people I despise, I think it makes sense to do so.

[30944836]

It makes sense from a pre-purchase perspective, but in a post-purchase state -- what's done is done; regretting a purchase has no impact on the world.

[skinnymuch]

Regretting can help you make sure not to promote the product, sell the product, and more. It can be quite helpful.