In "Re^4: one liner error" I see:

Reputation: -12 (+-2 -10)

The "+-2" seemed very strange and I'm pretty sure I haven't seen that in the past. I reloaded that page a couple of times but the "+-2" persisted.

I checked another from today's Worst Nodes. In "Re^2: delete single user" I see:

Reputation: -12 (+0 -12)

That looks normal. Any ideas on that first one with "+-2"?