Aningan: Couldn't you do the same thing with high-rating to gain rep? Toggle between neutral and high-rated to gain rep? Even if it's "sometimes" if you only have to press + then - then + again it's not really a hard thing to do.
Hm.. I didn't test toggling it from just one account, I toggled it using my RepTest accounts (so #6 would uprate, #7 downrate, #8 uprate, #9 downrate etc.).
I'll add it to my list of tests as I intend on repeating and extending on the tests I did in a more controlled environment.
When I say "biased towards negative outcomes", I mean that it takes less effort to remove rep than to gain it, not that it isn't possible to abuse the system the other way.
Licurg: I lost 12 rep overnight . I had 632 when I went to sleep, and today when I logged in I had 620. I thought that couldn't happen ?
Not only that, it happened
really quickly. Mind if I post your RepLog data that shows it?