I found out about the game via a p2p undercurrent, frankly it's a good word of mouth network. things that get posted are first considered worthy and then the degree of popularity is sort of thermometer of what a slice of the public thinks. I actively use torrents for tv, really not much else, but saw the buzz around this game from there, and then saw it posted on a few tech blogs and prompted me to look into it more, where I found out that the game was independent and would benefit directly from my purchase. I've been telling lots of people in person about it and posting it on the various forums I'm on hoping that at least one of those noodles will stick as well.
I just did a quick look at a few sites and it's still being distributed but it's mostly seeded with very little leechers if that says anything ( it's usually the case but the ration seemed steeper ) and on any site that had comments there were people saying to support the developers and others saying they had already bought it. the p2p impact on Aquaria might be significantly different than a commercial game as people think they are not impacting a commercial game's sales as much, and not all, but some people who frequent those sites have a bit of a conscience. personally I am quicker to go see a band live and buy their album or shirt at the show, and do so anytime a band I like comes through town, or if a band is on a smaller label. it's hard to equate game and application developers as artists and comparing them to musicians and setting your morale compass that way might help. it's sort of the difference between a drop in the ocean to a tablespoon in the bathtub, it really does make a difference!