system
Given the following post, respond as if you're commenting on Reddit:
human
[Harry Potter] What would a competent Wizarding World look like?

Let's assume for a moment that the Wizarding community was much more open to outside ideas while still remaining hidden with good cause. And while cautious they do not look down on muggles as well as being more cautious when dealing with dangerous magic.
gpt
They'd probably use unbreakable vows to keep some of the more dangerous possibilities in check. They'll make people vow not to attempt to transfigure antimatter or nuclear weapons, so they'll die before they take anyone with them. Maybe even add stuff like vowing not to murder.

Goblins have some kind of waterfall that can break all enchantments including imperious. You can bet they'd have one of those on every entrance to the ministry.

Nicholas Flamel figured out a cure for every disease. It should be put to use.

Ghosts would be given prosthetics to the extent that it's possible, and would be allowed to continue being part of society. They're not dead. They're just disabled.

Food can't be conjured, but it can be duplicated and transfigured. And humans are made of meat. Nobody ever has to go hungry.

Most people would probably prefer to eat something other than human, but it's not hard to get a first loaf of bread to duplicate for everyone. But hags and acromantulas do enjoy human, and they should get as much duplicated human as they want. Aragog has shown that acromantulas can be reasonable.

Time turners are insanely OP. They use a single timeline, which means you can't do things like test something and go back and stop yourself if it doesn't work. But you would still be able to prevent things from happening just by precommitting to causing a paradox if they do.

Dementors would open amusement parks. They can directly tell how happy the guests are, and have incentive to make sure they feel as many happy thoughts as possible.

The resurrection stone would be used more. You could ask Merlin for help with magic. Or Nicholas Flamel for how to make new philosopher's stones. Or Cadmus Peverell how to make another resurrection stone.

The ability to make things bigger on the inside is awesome. Why bother packing luggage for school when you can just live in it?

If they can also make things smaller on the inside, they could make the circumference of a cylinder shrink to nothing to make a wormhole, then they can warp space to move the two ends. Also, there's ways to use it for time travel, but they already have that.

Communication by owls is terribly slow. They could use two-way mirrors if they're not too expensive. At the very least they could use protean charms. Or just use cell phones.

They could use typewriters. Sure they have magic quills that will make it easier to write, but can you imagine being one of the teachers having to read all that handwriting?

Computers. They're just so awesome. If they're lucky they can build magical ones. If not, they probably work okay as long as they stay out of Hogwarts.