>18 years ago.
That explains it. That long ago I was busy with work and spent little time online.
With the real Q there was never any "think" about it.
There was verification and many such cases proof.
Not technically impossible after a Salt rotation to use the old TC posts with a make up any TC you want site option available in the code.
Real Q made sure there was no doubt about it that it's him.
This "Q" guy?
Eh, not so much.