Most, no hang on, ALL of the intensely annoying people I know are not vegan.
YABU and lazy.
Unless it's in a relevant discussion, like this, or I'm asked about it, I never talk about being vegan. What does happen though is I'm asked about it, whilst out for dinner in a group say, and immediately interrogated and attacked. I try my best to stay out of debates but sometimes people just will not leave off. And then, after making a huge song and dance, someone ALWAYS says "huh... How do you know if someone is a vegan?! THEY'LL TELL YOU!" I mean.... Just fuck off you boring , predictable cunt.
And it does boil my piss when people post artcilcles about abused, starved children whose parents refused to take them to a proper doctor and say "see these are the dangers of enforcing veganism / "extreme diets" on poor babies. That baby died because it's parents were abusive.
It's perfectly possible to be 100% healthy on a vegan diet, like with any diet you need to be nutritionally aware and not be lazy. I'm pregnant , vegan for 15 years, and have had all the blood tests etc, everything is perfectly fine, midwife and gp unconcerned.
I think many people that hate vegans simply for existing do so because they feel they have to justify their own lifestyle choices to themselves, and sometimes find it difficult to think about.
And if someone posts something annoying on Facebook just be a grown up and ignore it, like I do with some of my family members who make Britain First type remarks or post pictures of their bloody Sunday roasts, or whinge about how they have another cold. PEOPLE are self obsessed and annoying, just ignore them!