I think it's the lack of context that is making you a target for this.
Brady was brought up with his quote to illustrate how the BB vs. Brady debate should be let go of. That worked in the context of this thread, which is about keeping threads from derailing... letting go of the endless debate.
You replied to the quote rather than to what it was trying to illustrate, by pointing out that Brady was just saying nice things rather than what he probably really thinks. That doesn't have a lot of context for the derailing threads conversation, except as an example of exactly what Ian's trying to develop technological solutions to stop (or at least isolate).
When someone says something about Brady that you disagree with, could you try to work it into the context of the thread? Like, "Hey, I'll go along with this, but I'll just be lying through my teeth like Brady does." Then the Brady quote works in context and you haven't derailed the thread.