In Game Stalkers

[NephthysVasudan]

As already indicated..report them.
However.... you will likely be asked to blacklist and such.

If it becomes a worrisome thing you should consider transferring servers.
In truth....the other issue (lodestone) is a waste of time.

Consider it a compliment your being mimic'd. Get on/move on. Like it or not anyone and everyone is free to glamour as they see fit.
If you wan't to be a real annoyance..start dropping fantasia potions...kind of forces the issue lol. (Yes your spending money but it would be funny as its forcing them to do the same as well)

If it corsses over into other social media sites....you have the option to contact Local Law Enforcement.
Cyber Bullying in many states....is not a good idea.

In truth....black list...file a harassment petition if necessary...and just ignore them.

[HyoMinPark]

I would report the individual that is stalking you, as well as blacklist them so that they are prevented from contacting you in-game via /tell; joining Party Finders set up by you (sadly, this won’t prevent random matching via Duty Finder though); and you won’t see /say, /shout, /yell, or any /party or /ls messages from them either. If they get enough harassment reports, their account can be perma-banned from the game so long as there is enough evidence for the GMs to take action (chat log harassment is the best kind of evidence for this). I would advise that you also have friends reporting them as well if they witness chat log harassment, because if you have them blacklisted you obviously cannot see what they’re saying. GMs can pull up all chat logs at any time and see what you cannot, but multiple reports from yourself and friends can help get a report in faster.

This doesn’t prevent this person from making a new account, but if the new one is linked to their old one, it’s another automatic ban from circumventing a prior ban. Plus, them having to spend money on the base game(s) plus subscription can (hopefully) prevent them from returning.

There is no way for you to hide your Lodestone, sadly. If they have your character ID, they can continue to track you for as long as they want. Only way around it is to delete your main character, or start over again on an alt (and we’d rather not have that, I’m sure).

Consider it a compliment your being mimic'd. Get on/move on. Like it or not anyone and everyone is free to glamour as they see fit.
If you wan't to be a real annoyance..start dropping fantasia potions...kind of forces the issue lol. (Yes your spending money but it would be funny as its forcing them to do the same as well)

Considering the OP’s circumstances, I can’t fault them for not feeling flattered by the imitation. People who are stalked can have stalkers that imitate everything about them, and quite frankly, it’s far more unsettling than flattering.