I remember one which said (paraphrasing):
// Dev A: 15-mar-2002: temporary hack to fix blah blah
this->doSomething(whatever);
// Dev B: 25-nov-2009: "temporary" my ass
xDD
Edit: Mwahaha, found it:
JanKusanagi @identi.ca at 2016-01-30T12:15:30Z
johan likes this.