Why does it seem that on larger platforms there are bots that downvote comments?

You can tell it's bots because all the downvotes happen at the same time. I can guess for astroturfing purposes one would want to upvote their targeted comments and downvote all others but on lemmy?

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[–] 5 points 4 months ago (2 children)

Why, I haven’t been so insulted in my life, being compared to a bot. It’s me.

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