I recently got shadow-banned for downvoting one of the Monsanto shills. He can just post pages and pages of astroturf, but if I dare to downvote him, I get banned.
It's a fucked up system, where corporations, and governments control SOCIAL MEDIA. That's why I'm here, hoping to be part of something better, something less censored.
I HIGHLY doubt you were shadowbanned for down voting a handful of his comments. However, if you went to his user page and blanket-downvoted a ton of his comments then that could (and IMO should) lead to your account's privileges getting curtailed.
How did they know you downvoted?
How did they know it was you? Did you say something?
And yeah,big business can just trample all over everyone.