Up until I stopped development in July 2013, I had been cleaning them regularly for each version. Good luck
In that case, I probably contaminated the high score list by playing all those games with the previous version. (Oops!) :P
...on my server you have to forcefully refresh the page every time you visit...
Ah, okay, that explains it, then. And yes, refreshing the page fixes it.
In other news, I just played another winning game! :D Once again, I faced Kornel after round 5 of the Arena, so I didn't have enough time to get a super high score, but it was high enough to get number 2! :) Once again, I drew Gotcha! which made me kill the Cyberdemon and Spider Mastermind early; I have a feeling that if I am able to put off killing those two, I can make the game last longer and get an even higher score. Funnily enough, I got credit for Mastermind's Brain, even though Cybie was the one doing the killing. :)
On a completely unrelated note, I've been meaning to ask... I notice that when I get a berserk pack, the red screen effect seems to be based on real time, rather than in-game time. (ie if I hold still, the red screen will end even though no in-game time has passed) Do you lose all the berserk bonuses when the screen returns to normal too? Does this mean it's more efficient to charge ahead while you're berserk to get the most benefit?
EDIT: Also, I'm pretty close to beating Vandam's average score! :D