So what’s the user agent for their bot? They don’t seem to specify the default in the docs and it looks like it’s user configurable. So yet another opt out bot which you need your web server to match on special behaviour to block

>So yet another opt out bot which you need your web server to match on special behaviour to block

Given that malicious bots are allegedly spoofing real user agents, "another user agent you have to add to your list" seems like the least of your problems.