I’ve heard that it’s considered click fraud and that the advertisers sometimes Force the site to pay them back possibly a little bit extra as a fine.

Not too sure though. Personally I don’t really use it because the adblocking structure I have set up isn’t really compatible because it has multiple layers. I block the ads over the network through a network-wide firewall, I also block them through portmaster on my computer, and finally I have uBlock Origin in my browser. I also have adnauseam alongside of it and I turn off ublock origin for the sites that I want to autoclick ads on but almost none make it through the multilevel network filtering.