Limit voters to one polling location. Problem solved.

That's what we do in the US. You are assigned a polling location based on your home address. You can't vote anywhere else. If you try, they turn you away.

You can do a provisional ballot (for people who recently moved, and poll data isn't updated, etc) and they validate your ID/address/etc later.

And in Russia, it is. That's why they call it "карусель".

In the United States, it hasn't been. The article you link to doesn't even mention the United States. To do it on a large scale requires cooperation from the people running the election, and the US isn't (yet) that corrupt.

The US system isn't completely robust against it, and perhaps some day it will be a problem. But right now there is no evidence that it is a problem, and all of the attempts to "fix" it are clearly aimed at preventing some people from voting.

Interesting. In Canada, for federal elections at least, you're assigned to a specific location and station. You can't vote anywhere else. There's a separate process for mail in ballots to confirm you didn't vote in advanced voting or on election day as well.

At least in NY, you would have to know the name of someone else assigned to the 2nd polling site, since your name is only on the list of 1 polling location?

It only works if the people working at the polling station are in on it, because you can't normally get an absentee ballot more than once.