Spam is mass messaging. You are doing that. And since you are not upvoting the content you compliment, it is clearly an empty message for enriching yourself, another characteristic of spam.
Bullying is using coercion and force for dominating or intimidating. I am downvoting spam and telling you to be a better member of our community. Not the same thing at all.
People are upvoting your spam because they think it is genuine support. You are being deceptive. Instead of acknowledging your error, you are throwing insults and accusations. That is childish. You are masquerading as a beacon of enlightenment, but your actions and replies are counter-evidence aplenty.
I hope my communication is equally clear.