If you have content worth plagiarizing...
UA: "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_6_8) AppleWebKit/537.22 (KHTML, like Gecko) Chrome/25.0.1364.172 Safari/537.22"
Ropbots.txt: No
199.47.80.0/21
199.47.80.0 - 199.47.87.255
Why I block it (and all similar bots:)
1.) IMO they themselves are not honest. They do not identify themselves.
2.) Their business model is based on the use of my intellectual property, but do not solicit my permission nor compensate me for its use.
3.) They do not say what they do with (my) content they scrape, how it is stored, for how long & who has access to it.
Note: They were formerly known as "TurnItIn" and as such, earned a disallow in my robots.txt. So now they come pretending to be a human browsing my pages, not.