The commenter I responded to initially wrote as if they actively seek anonymity by taking several inconvenient steps every time they shop, even when they presumably have nothing to hide. I wanted to understand what drove that behavior and if it was worth it.

They don't have to articulate it, but inability to articulate might be a sign of overcautiousness / paranoia that is having a negative impact on their life.

If one has something to hide - then sure, take extra steps to be anon. Otherwise, why put yourself through so much trouble?