It need not to be commercial service. For example, Wikipedia is a donation-only service. A bot visit is generally not different then most user visiting (I'd ass

It need not to be commercial service. For example, Wikipedia is a donation-only service. A bot visit is generally not different then most user visiting (I'd assume most users don't donate anyway). Wikipedia doesn't really mind serving users that aren't donating, but the bot, while generally not different to normal user, are stealing resources away from actual users.