Heard similar stories from a buddy who fixes appliances. If vinegar doesn't clear the whole clog, leftover bits can wreck the pump. What model was your neighbor's?

Honestly I used to think it was overkill for casual stuff, but the journalist made a good case. She said using it with friends normalizes the habit, so it's not this big scary thing when you really need it. It just becomes part of how you talk, which kinda makes sense.

Sometimes the system is just slow, not broken. People might be quiet because things are actually fine.