I guess I'm old school.
How about
:
A certain poster from early in this thread being outed as a perp after years of fooling everyone.

Damasa's car accident and recovery period.
"Earpman Down"
Either joining Gamma Chi committees or trying to destroy Gamma Chi.
Knowing the full name behind OTW.
ETA: Aha! I'm coming up on 7 years on GC and I didn't even realize it until after I posted. Yep, seven years of being not well-liked on GC....and proud of it!