I don't agree with that. By giving the unique location you have indicated there is a big problem that is perhaps more solvable than it would have been otherwise

I don't agree with that. By giving the unique location you have indicated there is a big problem that is perhaps more solvable than it would have been otherwise, since there is a limited group of people, many who are presumably organized, in a specific location. That is something much easier for LinkedIn to deal with than a generalized trend to scam the site from around the world, presumably with a much greater variety of tactics and targets.