If you run a website, you'll realize it's very difficult to get human traffic. Worse, trying to understand what those eyeballs are doing is a swamp; there are legitimate privacy concerns for example. Maybe all you care about is if your articles about sewing machines are getting more traction than your articles about computing Pi, but you can't get that without navigating all the legal complications of your analytics platform of choice, who wants to make sure you suffer for not letting them collect private information on your visitors to sell to third parties and to dump ads onto your visitors. Were it not for the bots, you would be fine just by running grep on your access logs. But no, bot traffic leaves noise everywhere; and for small websites that noise is more than enough to bury the signal and to be most of the traffic bill.