They aren't slow and expensive - they specifically limit the amount of separation you need to do if you're a small business. If you deal with, or store, inform

They aren't slow and expensive - they specifically limit the amount of separation you need to do if you're a small business. If you deal with, or store, information about users why shouldn't you be held to reasonable standards for protecting that data? Why should you be allowed to keep that data for however long you want to? Businesses used to run without stalking people, just because it's become the norm doesn't mean that it is required, or even just ethical.