I look it as your IP address is similar to your License Plate. The Police can look up who you are with those few numbers. Whether they get it from a witness or a security camera. Any of the other arguments can be made with that analogy. Other ppl use your computer at home? Someone borrowed your car. A botnet took it over? car was stolen. You are going out into the world even if you never leave your moms basement.

Maybe not remove the incentive but to make it more cost more to operate a botnot. Thereby driving down the profit margins. If it could be driven down to a low enough ratio they could move on to something else more profitable.

How much sunlight would auch a parkin lot reflect and thereby help fight global warming ??

Does getting put on Santa's naughty list red flag you?