"Used-to-be-vegetarian"s

Nothing erks me more these days when I'm browsing the posts of people i barely stay in touch with on this social networking thing than seeing a post by a used-to-be-vegetarian that is anti-vegetarian, or just a joke about vegetarians. It's not like being atheist. Atheists who start off as theist are usually more outspoken than those who've just never believed. It's because they have experience with religion and religious traditions that a person who has never really followed any sort of religion would not have. "Fuel" for their "fire" for lack of a better phrase. They may come off argumentative or "preachy" about the idea that god does not exist. And quote passages of religious texts that are hypocritical or nonsensical because they have a passion to be anti-religion. But can this apply to vegetarianism? Do vegetarians just wake up one day and realize that they've been duped? That animal suffering doesn't really exist? That the devastating ecological impacts of meat production and consumption are all a lie? That the animals on dinner plates don't have emotional lives or thoughts or feelings like what we have? That animals are REALLY JUST BIOLOGICAL MACHINES LIKE DESCARTES SAID?!?!?!?!?! No, I can't imagine this is how it works. I think some people start getting bored and/or lose touch with why they decided to make lifestyle changes like becoming vegetarian and they easily "change back". Why some become "anti-vegetarian" is beyond me. It may be insecurities like what alot of omnivores have when talking to vegetarians/vegans about their diets. Alot of them say "I don't eat meat often..." and that's great, as long as they understand I'm not trying to ruin their meal if they're not trying to ruin mine by talking about why they think it's okay to kill deer and eat them while I'm eating my peanut butter and banana sandwich. Eat your fucking hamburger, it's your life/heart/ethics that you have to answer to, not mine. There was a "GHENT CONFESSIONS" post recently that was allegedly by a cook at a local Ghent restaurant who claimed that they put a little butter or dairy in every "vegan" dish they made because they evidently had a grudge against vegans, called vegans "pretentious fucks" actually. I read some of the comments and found the dialog that the person created a little amusing, and I commented. I didn't look at the post the same way alot of others did. I thought of how close minded this person was and my mind drew a person with no respect for ideas/lifestyles different than their own. How intolerant this person is/was. It seems strange to me that anyone would be intolerant about vegetarians, but I guess the "used-to-be-vegetarians" have that passion. Or they might just be hip wanna-be-foodies who got bored being vegetarian in a society of meat eaters and have a little bitterness in their hearts for those who are still living it.