Only if you are having a conversation where the demographics of the scammers has relevance.
In the case of discussing LinkedIn, it doesn’t matter where the scammers are from. The adjective is redundant in this context.
In this thread, almost any other adjective would have allowed the main meaning of the sentence to continue uninterrupted (“filthy scammers”, “frustrating scammers”, “purple scammers”, “fearless scammers”). “Scammers” already includes a negative connotation. By adding a redundant adjective to an already pejorative noun, you run the risk of imparting some of that negativity onto the adjective as well. This easily leads to the perception of racism.
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.
In the case of discussing LinkedIn, it doesn’t matter where the scammers are from. The adjective is redundant in this context.
In this thread, almost any other adjective would have allowed the main meaning of the sentence to continue uninterrupted (“filthy scammers”, “frustrating scammers”, “purple scammers”, “fearless scammers”). “Scammers” already includes a negative connotation. By adding a redundant adjective to an already pejorative noun, you run the risk of imparting some of that negativity onto the adjective as well. This easily leads to the perception of racism.