I wouldn't have withdrawn my other certifications, but it's clear that each one dilutes the effectiveness of the others, and my vote obviously is nearly worthless already. If focusing it all on the one person that I know personally might help him get certified, it seems logical. I'm a third-class citizen here; I obviously don't have enough voting power that I can afford to spread it around...
I wouldn't have so many posts regarding certification if (1) I hadn't needed to respond to so many attacks against me and (2) the certification system wasn't excluding the majority of accounts from using most of the system. Theory-wise, it's interesting to discuss the certification system and whether it can be improved. In practice, I don't want to be discussing who certified who as what; I've only used that as examples of how the system seems not to be working well.
I'd rather be talking about free software. In that vein, you asked about alternatives to Bugzilla -- have you looked into the Debian bug-tracking system? I've heard it's a bit of a bear to install, but from the user perspective it works nicely, and it integrates smoothly with email for the user... (This might be the bear part to setup, though.)
P.S. Since the recent diary entries page only seems to show the last entry from a person, note that I posted a number of other responses already today...