Another highly effective approach to protecting the status quo of animal abuse would be to sockpuppet as a "vegan." Any time a story comes up about animals or veg eating, "vegans" will post angry, judgmental, extremist, anti-human comments. As long as the stereotype of vegans remains self-centered, hateful, and disconnected from reality, non-vegetarians will have an excuse to ignore the animals' plight.
There are plenty of examples -- just look in any comment section of just about any story ... if you have the stomach for it. Here is another example, addressed by The Sistah Vegan Project:
“Got Colon Cancer? Then You Should Have Gone Vegan”
Hard to imagine what we could do to make it less likely for new people to consider veganism.