I bot for items. I don't play a ton, but I'd still like to have decent characters, and fg is good for more than d2, so I always keep that in mind. I can switch to another supported game in the future. Like D3. Besides, I buy with my fg only what I need, or I spend it on my friends. I tend to give most of what I get away to people, too. I don't feel it's a crime to do what it seems like so many others do, especially when I barely profit from it anyway.
There are a lot of things to be more worried about than fairness on a game approaching 10 years old. If your going to get angry about something to do with d2, be angry at people that steal other people's paid for cd keys. That's another reason I bot. This way "Roy" can learn to keep the fuck off my cd key.
One other thing... Warden is what Blizz uses to catch people botting/using hacks on their games. Wouldn't they need to upgrade Warden and not patch Diablo to catch people? Not sure how it works, to be honest. Just a thought.