If you wanna get technical about it, I am a member of the church of the subgenius, and since I live in texas this makes me an honorary subgenius and a dishonorary discordian at the same time. Being dishonorary, I tend to not follow the rules of discordianism either (though most honorary discordians don't, either).
At any rate, discordianism could be considered a subsect of taoism, though taoism might not be so proud to admit this

Most of it's ideas come from taoism, though it's more like judaism and christianity at this point, they are generally more dissimilar than they appear, and a discordian would be hard pressed to be accepted as a taoist by other taoists, or so I imagine. I myself am pretty torn between being fully taoist and fully discordian, depending on my mood and general state of mind I might be closer to one one day, and the other the next day.
Anyways, I wasn't aware that taoism was vegetarian. I never heard anything specific about it from any of the taoists I've talked to. Just one more way I make a terrible taoist, I suppose