You added a period afterwards - so it's technically a different name... But "Raycat" aka "Clinkster" was a great memer... If there were ImgFlip Jerseys and numbers - his would be retired - and he'd be in the Hall Of Fame.
You might want to add a note to your profile page's "Tagline" - on the "Settings" page. You might note that you're not the former "Raycat", give him props, pay homage, etc.. It's just a thought - and entirely up to you... I'm pretty sure that the commentor above, was just being facetious.