The war on spam really boils down to comments, IMHO.

If you think a person writes spam posts, don't follow them, and don't like their posts. They won't trend and they won't make any Steem, so eventually, they go away. This is the beauty of Steemit.

However, when a person comments just for the spam of it, that is a problem. Identifying those who do with the hashtag, #WarOnSpam, is a brilliant idea and I wholeheartedly support @stellabelle in her efforts.