What is swatting? That is a new one for me.

That said I'm not sure what I'd do if someone started down voting all my posts into oblivion.

However in this case, that didn't actually happen, they weren't zeroing every post, they were very careful about which ones they downvoted - the ones that were copy pasted across multiple platforms.

Move on about your day, they generally get tired.

Personally and in my experience (I do have a "fair bit" of experience getting downvoted here), the best thing to do is get on with your day and do what you enjoy. I write regardless, but I am not only in it for the money.