@Clarkie
Pretty much what Miss Nancy said, and those commercial OS cannot be trusted to remove anything properly.  When you install something on Linux it shows you a complete folder and file record of everything it did, and when you remove something, it confirms that it removed every bit of it, all automated, all there for you to see - no need for it to be underhanded, it's there for your sake, not Apple's or Microsoft's sake.  Commercial OS hide all sorts of shit from you, whereas the Linux-based OS are geared towards a very different mentality.  Almost the entire web uses Linux-based servers for a reason ... security!

She's talking about a proper uninstall, and yes, that's the proper way to go. But if i want I can just drag an unwanted program to the trash and delete it. The the Mac OS also creates a log anytime you install or uninstall a program telling you what it did. Most people just don't care enough to read it. Look, I get it. You're a rebel. You like free and open sourced stuff. Fine. If that works for you go for it.