The "increase risked BTC to increase the strength" thing only applied for a brief period of time. It didn't work well, so I removed it. It has no effect on anything, and I will probably remove "risked BTC" entirely in the future.

I don't think that it's a big deal to put ridiculous values in that field, though probably you shouldn't. For reporting something second-hand, there's never been a standard, and as far as I'm concerned you can do whatever you want. Since it doesn't actually affect anything, it's basically the same to have riskedBTC=1 with a comment of "he stole BTC" as to just say in the comment "he stole 1 BTC".