If you're actively going afk, plenty of us will call you out and vote to kick you; plain and simple. In my observations, the visceral feelings over LFR come from people who do this stuff because they "think" everybody else is doing it. To quote a friend, that's an iss'you'.
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That said, having people pull trash to the spawn point between augur/bot was poison and killed the raid (literally and metaphorically) because new players would come in, die instantly, and leave.