Earlier quoted context omitted.
A company I worked for ~7 years ago ran its own focused web crawler (fetching ~10-100m pages per month, targeting certain sections of the web). There were a surprising number of sites out there that explicitly blocked access to anyone but Google/Bing at the time. We'd also get a dozen complaints or so a month from sites we'd crawled. Mostly upset about us using up their bandwidth, and telling us that only Google was…
Isn't that the website owners right though? I'm not sure I understand the problem here. If Google is taking traffic and reducing revenue, a company can deny in robots.txt. Google will actually follow those rules - unlike most others that are supposedly in this 2nd class.
The company did respect robots.txt, though it was initially a bit of a struggle to convince certain project managers to do so.