I'm going to disagree on this one, I've seem far too many comments, especially from LW users, along the lines of "I can't be bothered to change websites because I'm already settled in." Most people are attached to their posts and content and consider moving instance as "losing progress". And the bigger an instance is the harder it'll be to leave if they ever pull something seriously "power trippy" that could lock off content to some people, because there will be a large mass of communities and posts on that instance.
I prefer votes being semi-anonymous. The vote counts are technically public, you just have to use software that displays them, but that added barrier is enough for most people to never check and that is how I prefer it. I feel like seeing voter names just encourages getting into pissing contests about "why did you downvote me" which I don't want to happen because: A, votes don't matter and B, if someone downvoted without commenting they probably don't want to spend half an hour arguing in comments.
Don't make the same mistake I did. Get a backup in place before using ZFS. Using ZFS and RAIDing your drives together makes them a singular failure point. If ZFS fucks up, you're done. The only way to mitigate this is having another copy in a different pool and preferably different machine. I got lucky that my corrupted ZFS pool was still readable and I could copy files off, but others have not been so lucky.
To expand on what Grappling said, I'll give you an example. A few years ago the city repaved a decrepit section of road into a smooth and wide open road that is wide enough for 4 lanes but made into 2 wide ones with massive shoulders. There are no pedestrians on this road and you can comfortably go 80-100km/h. The speed limit they set? 50. While it's not every road, it is definitely a lot of roads that get treated like this. It results in getting very comfortable with breaking the speed limits because the speed limits are ~~stupid~~ not matched to the designs of the roads.
All seem like improvements to me.