Do you have a single username you feel attached to?
Or do you like to use different names for different occasions?
Edit two and a half days later:
Thank you all for answering my question! It was so interesting and fun to read all of your responses.
I really appreciate you for taking the time to write.
My username is different on (almost) every website. The amount of websites I’m on (especially considering I hold the world record for website registrations) would make it pointless to reuse any.