Apostrophical query:
- a) Buyers Remorse
- b) Buyer Remorse
- c) Buyer's Remorse
- d) Buyers' Remorse
My guess is b or c, as it seems like any example is talking about the remorse of one specific buyer, but since it is a collective term that happens universally, perhaps the possessive plural is accurate. I suppose there’s potential that it’s a context-sensitive decision, deciding whether you are talking about exactly one buyer or about buyers in general.