At least with Adsense it is against their TOS if a page is presented differently only for bots versus humans. GoogleBot also has some issues with that because some people try stuff keywords & other content on bot-only pages versus what actual visitors would see.Why?
I just want to do not load, extra resources for bots that only intended to human visitors.
is_robot is something I've used to to make sure StopBotResources never catches spiders as spam bots... so it would be simple to do. But it is risky once you start doing different things for search engine bots compared to normal usersThe $visitor object has an array key named is_robot to detect bots, so you could create an add-on to change their style based on if that's true or false.
Making content available to spiders which isn't available to guests is classed as cloaking by Google and can get your site blacklisted.