Before anyone throws a morality card at me, I don't own a pirated Photoshop. However, I once did (as most of us once did). Moving along to a discussion I had with a friend: What I want to know is whether or not a pirated installation of Photoshop, on your Mac, can mess up your Mac's registry or root or general performance. Versus a clean installation of a legit Photoshop. Or is the pirated copy merely just a hack of Photoshop's lockdown (which won't affect one's Mac)? My gut feeling is that it can ruin things, but my friend disagrees. What do you think?