There's no need to judge TPB on a moral ground. There's no such thing as "good" or "bad".
It's just that your way of getting money is becoming obsolete. Just like candles manufacturers who fighted electricity, you are not relevant anymore in the current world.
Don't take me bad : you are right to do as much money as you can right now. But you must stay realistic : it won't stay like that forever :
1) A free software equivalent of your softwares might be created.
2) A big proprietary monopolistic vendor might do a software with the same features for half the price.
So, whatever you are doing, you know that it's a short term gain.
Now, let analyse your situation with your software being on TPB. Have you any evidence that it makes you loose money ?
If I told you that :
- 90% of people downloading your softwares would have never bought it anyway.
- 8% of those people weren't sure about your software and would have never bought it but after using the pirated version for more than one year, they choosed to buy an official version because "hey, it worth it".
- 2% of people wanted to buy the official version and stayed with the cracked one.
In this example, having your soft on TPB was a profit increase for you !
So please, just stop thinking with your guts and start using your brain. You have no evidence that file-sharing is bad for you. Not at all. Just an intuition driven by the music/software industry propganda.
Also, you know that it can't be stopped. It's an evolution. You can maybe make it a little slower (that's what RIAA is trying to do) but it will never be stopped. So, instead of crying, trying to slow evolution at all cost (conservative position), why not trying to take advantage of the future ?