have the client do a captcha test when logging in, with the option of bypassing the captcha test, the result of the test would be verified server-side to help avoid cheating. if the client told the server it was logging in bypassing the captcha, or if it simply didn't request the captcha image to be sent at all, that account would be ignored for traffic purposes for the duration of that session (till it was logged off, and in again) this would help with preventing the (miss)use of bots to game the search ranking while not preventing any client from logging in (people logging with older clients would be ignored by the traffic system since they don't ask for a captcha test) perhaps also have captchaless logins show as yellow (or grey or whatever) instead of green on the minimap and the main map to also reduce the usage of bots to trick people into thinking somewhere is popular by the amount of green dots it has on the maps it probably would also be interesting to have the data about whether some avatar has done and passed the captcha test or not for that session avaiable to scripts to let people have their camping devices filter out bots if they so desire (some people like to only have real people using their camping sites, I guess to improve the social aspect of the place or somthing, dunno) this wouldn't prevent the return of camping sites, but at least, with real people camping, some benefits, like giving newbies some money and having a place where real people gather around it would provide some benefits not brought by camping/traffic bots (from my understanding, what people call camping bots are usually bots owned by the owner of the land that use regular camping devices to give the illusion the place is a normal camping site while not leading to any money loss to the owner (possibly attracting human campers that will stay on the land for a while in the hope that some of the avatars they believe are controlled by humans will eventually leave and free a spot), and traffic bots are bots that just hang in the land to game the search rank) ah, another thing I though, perhaps have the sim the person is logging into run the test instead of doing it on a central system to help distribute the load induced by the generation of the captcha images and the verifying of the user's answer that would follow, and then have it report the result to the rest of the system if the user passed the test (if the user failed, it wouldn't be logged in, and if it choose to bypass the test, there would be no result to report)