The thing is that on leftist forums, the stakes for a veganism debate are pretty high cause it easily causes a 50-50ish flameout.
Mods would appreciate if people like OP didn't intentionally troll to stir that sort of thing up (if the discussion takes place organically and respectfully, then whatever).
Mods would also appreciate if people didn't feed obvious trolls who are just starting things up, like you pointed out, there are specific places to post about that sort of topic.
Be careful about "unsubscribing" to various services.
They will unsubscribe you, but then they also have all of your information (name, address, anything else) on record and confirmed. They can profit when the sell that data to another mailer "service". It's like a Hydra.