@iZho I assume you weren't scammed based off the discord conversation, which is great to see. As for the imposter account itself there's unfortunately nothing really that we can do to stop him because he could easily be browsing the forums off of a guest account and trying to find your contact information through your posts from your profile. If there's any proof to tie this user to a Sythe account, then please make another report here and refer to: How to Report a Scammer; Report Templates + Video Tutorial.
The best thing we can do to prevent this as much as possible is to continue to inform people of these scams and how to prevent them from happening to them in the future.
I'm sure you're informed about these yourself, but feel free to refer to these (or anyone else) if you ever need to: