Maybe a better term is field-replaceable batteries. It’s great for the longevity of a device to be able to install a new battery in a few minutes with just a screwdriver, but I miss the earlier days of cell phones where you could keep a spare battery in your bag while out and about and swap it out with the dead battery in your phone in just a couple seconds.
The total point count on your profile may be meaningless, but votes on a comment/post absolutely have an effect within context. If you want to post to a community about something, the post may never get seen by many if it amasses a bunch of down votes. If you want to weigh in on a subject in a particular thread, a down voted opinion will be drown out by all the other comments.