For webmasters, the damage these rogue bots, tor, hack attempts can just bring down the whole business. I think more and more smaller websites will be opting for cloudflare in coming days.
But on a serious note - you can't exactly rely on Cloudflare to not bring down a business. For me, it is a very nice convenience to throw up in front of my WP sites for caching and to help limit the bad traffic I get, but that's about it