It could be, and you’re right that I can’t prove anything beyond a doubt. But there is an entire industry built around professionally manipulating public opinio

It could be, and you’re right that I can’t prove anything beyond a doubt. But there is an entire industry built around professionally manipulating public opinion for money, and the groups most interested in deanonymizing the internet are well resourced. Simple inductive reasoning will tell you that a portion of the support is likely astroturfed.