Linux is all about choices. More often then not there are those that disagree with some of those choices.
1) Stallman vs. Ubuntu.
Ubuntu 12.10 includes features that are supposed to make it easier for users to find the stuff they want. One example is the Amazon integration which helps users by showing them stuff they might want if they are searching. According to Free Software Foundation (FSF) Founder Richard Stallman (RMS), Ubuntu is actually ‘spying’ on users.