Learned this the hard way—they traced my account because I'd reused the same username across different gaming platforms before getting into crypto. Seems like a small thing, but in this space, username consistency across services is basically handing over your digital footprint on a silver platter. If you're serious about your security, break that habit early. Use different usernames for different platforms, especially anything tied to your crypto activity. Your past online identity can become the weakest link in your security chain.