I will be not kind, and I am sorry for it:
piracy is not good nor bad per say, like some Saïd, sometimes it helps people getting their products known (or show how stupid your government can be, or give people excuses to add a while ton of undesured thing to their products)
but being potentially a neutral or even à positive thing does not mean it should exist! If your game is known because if piracy, it is more a "Lucky strike" rather than a thing you should claim, piracy did not make the game being known, the fact people loved it or hated it did!
piracy seems so "normal" sometimes it is crazy, I do not think this is stealing, but whatever this may be, we could do without, there are always thé same excuses:
"cultural things should be accesible for everyone"
-... applicable to some cases, but also used in other stupid cases really, and there is still the fact that thé creator wanted that to be paid, if you do not agree, Nothing forces you to download it
"it is not because I do it than it will harm"
I being "a whole ton of us" easily
"It is not worth the price"
so find a worthwhile product
"but I want to test before buying, and everyone can make a good looking demo"
hard to find an argument against other than if it do not please you, you used it freely
"what will they do against me?"
if you only think about punishment, you will not get my post anyway I would think
"I will make money with it, then buy the software"
or you will fail miserably, or take too much time and so hurt the company partially
non exhausive list
tl;dr Piracy is something we cannot stop, does not mean it is good nor it should exists