What is it with Norton's flagging hobby blogs all of a sudden?

I've seen several flagged as "known malicious sites" in the last few weeks, and just discovered my Lohwand blogs has been flagged as well. I complained to Norton's about the others I spotted and they had the flag taken away. I've complained about mine as well so hopefully that will be dealt with soon.
It makes me wonder how Norton's makes the determination? Algorithms? Are humans involved? And do those persons even know what wargaming is?
It's not just Blogger, other platforms have been flagged as well.
What annoys me the most is they don't give a reason for the flag. The main thing its doing is undermining my confidence in Norton's product.