In short
I got a reply from a prolific anti-vegan troll and referred them back to an earlier conversation we had. Got banned for "harassment" and "following someone around" when in fact they replied to me and keep following vegans around when they post against anti-vegan propaganda.
The 14-day ban and comment removals by @aeronmelon@lemmy.world: https://lem.lemmy.blahaj.zone/modlog/45638?page=1&actionType=All&modId=6106918&userId=18352111

And the posts in question:
The comments when I posted them rendered as
Oh hey its you
The link is to a discussion which expanded is this here (The link goes to the comment with the highlighted star):

With background
The person in question is a very dedicated anti-vegan troll who is known to make non-sequitur claims as replies to vegans, in the hopes of roping then into a defensive position under the guise of "debate".
To exemplify this I engaged with them a couple months ago and got a perfect showcase of their behaviour. I had never used this and have never replied to them since then (at least I don't remember that I have and searching didn't turn anything up). But then when they replied to me yesterday I did. And got promptly banned for "harassment" and "following someone around". I messaged the mod who banned me to no reply.
Their behaviour is being enabled by lemmy.world mods like @aeronmelon@lemmy.world who will readily delete comments made by vegans should they dare step a foot outside of the norms of "civilized debate", like e.g. in the same thread (1) and (2). The petulant and incessant trolling by them is of course never subject to such moderation actions.
To any vegan comrades, do not engage this troll, you risk getting banned and your comments deleted.
Apparently I used wrong account to post this. Will have to switch accounts to my blahaj account on occasion to reply to comments, apologies.
In the pictured comment chain, the quote text asked OP to prove the absence of something (sentience in plants). Then Commie later admitted that it was impossible to do so. And from the start, the claim that plants are sentient is likely one that no one involved actually believes. I cannot think why you would make such an objection other than to exhaust someone and waste their time.
And even if plants were somehow sentient, it would still be less harmful to eat them directly than raising animals to eat due to the massive calorie loss from going up the food chain. Having animals be a middle man for humanity's consumption would result in more plants being killed, not fewer. OP touched on this briefly in their replies. Meaning that even if it was intended to object to veganism, the argument only adds an additional reason to adopt it.
OP did imply an objection to the plant sentience claim disproved it, which is the wrong response, but only because they should have rejected it out of hand as something unfalsifiable. Commie chose to be pedantic that it could still be true.
There's not enough here to judge Commie as a troll, but they did support a spurious argument much more than OP.
my whole point was that it is unfalsifiable. I did what you are saying they should have done.