There are very few things that agitate me more than someone who jumps in at some random point and starts a statement with, "I'm not taking a side, but..." Which is mostly because every single time someone says that, they are obviously taking a side (and often are just trying to insult the other on top of that), and they somehow seem to think that everyone else in the world besides themselves are so incredibly stupid that they won't be able to tell and will somehow believe they aren't taking a side just because they said they aren't.
This is, of course, similar to people who begin with, "No offense, but..." or, "I don't mean to be [blank], but..." or the like, but in those cases it at least sometimes is somewhat understandable that the person in question is just so clueless that he honestly doesn't know that saying something like that at the beginning and then doing the exact opposite doesn't actually make it true despite the words that follow, which are often the same types of people who think that claiming they are "nice"/"sweet"/"friendly"/etc. (which is obviously not something which has any meaning if you claim it about yourself anyway...) automatically makes it so and so all the backwards things they do are forgiven. Only sometimes, though.
Well, I suppose my final point is that anyone from this point forward who starts a comment with, "I'm not taking a side, but..." is just going to get ignored by me. If you don't even have the balls to admit you're trying to get in an argument, over the internet, of all things, where your image really doesn't matter the rest of the time anyway, you don't deserve a response.