This is true, but this site is a different case from the torrent sites, and I can give you a couple reasons why. The first is that GoodEreader.com appeared to be a legitimate blog. No one thinks the torrent sites are legit, and until I outed this site they were using that air of legitimacy to draw in the unsuspecting.
My second reason is more important, IMO. GoodEreader.com are charging money for access to the pirated ebooks, and that's is a bigger deal than you might realize.
Not everyone pirates ebooks becuase they want something for nothing. (That type won't pay anyway, so they're irrelevant to this discussion.) A lot of people pirate for, well, you may not call them good reasons, but they're reasons you can live with. This is the type of pirate that still goes out and buys content. They might download a pirated ebook as a sample, or becuase they already own a paper copy, or for any number of reasons.
The important detail about this group of pirates is that they will spend money. If they join GoodEreader.com, they might think it's legit. They'll be spending money at that site that won't get back to the creators. I have an issue with this, and that's why I wrote the post.
P.S. I include myself in this group of pirates. I try to always pay for content, but sometimes I'm simply not allowed to. Tor-Forge Books, for example, don't want to bother with making ebooks.