The screws is probably the only thing that they need to fix up. That’s a safety issue but besides that, nothing wrong with that fence.
Edit: on further inspection that fence isn’t even on the property line, so it’s a non issue.
My guess is there’s a dispute of the existing fence, your neighbor wanted to replace it and either you or a previous owner didn’t, so they did the next best thing, put up a fence on their side of the property line at a decent enough distance so they could get the privacy they wanted.
Does it stop things getting through the fence?
If yes then it’s a legally perfect fence.
The screws is probably the only thing that they need to fix up. That’s a safety issue but besides that, nothing wrong with that fence.
Edit: on further inspection that fence isn’t even on the property line, so it’s a non issue.
My guess is there’s a dispute of the existing fence, your neighbor wanted to replace it and either you or a previous owner didn’t, so they did the next best thing, put up a fence on their side of the property line at a decent enough distance so they could get the privacy they wanted.