Ban spambots harvesters and scrapers from browsing your site

[Alfa1]

Unwanted bots are harvesting email addresses from your site, scraping content only to replicate it on other sites, looking for vulnerabilities, examining content for spamming purposes. This is not only highly unwanted, but it is costing you bandwidth. i.e. money.

There should be a way to block unwanted bots from viewing a site.