CAPTCHA is circumventable. I'm more inclined to say bring back the old 'aggressive' randoms - river troll, tree ent, drunk dwarf etc. Really? So no bot has a "IF damage occuring THEN teleport home" coded anywhere in it? Sorry, aggressive randoms affected normal players much to often to be beneficial. As for CAPTCHA, I think RS can improve on them as they have a 3d option. Basically, have five to eight 3d shapes that are randomly placed, rotating and slightly moving. On the skin of the shapes are the individual CAPTCHA letters. After that, an interface like the Bank Pin pops up where you have to tap in the letters in order (maybe eight buttons). Even better, they could just use 3d models of dragons, man, furniture, cat, boats, trees, etc in random posing and shading with letters mapped on the skin of various body parts then converted to a 2d image (removing model id's). It then ask for specific letters (back of the human, left wing of the eagle, branch of the tree,, shield of the demon) . Now, I'm not up on anti-CAPTCHA, but that sounds beyond the abilities of any program to solve but fairly simple to implement. Yes, CAPTCHAS can be overcome if you never change the patterns. However, Jagex should easily to be able to call upon it's enormous model library and the fact everyone is in a 3d interface to design a nigh impossible bot anti-bot tool. Then, like others say, you implement this device so that accounts stop being tested slowly over time. It can even alleviate annoyances to new accounts by older players by letting older accounts sponsor newer accounts (tested less often though obviously all connected accounts will then be at risk if any attempt to bot). What if what they did was, as you say, use every model in the game, and give the player options that would be totally random each time so maybe it would slow the bots somehow? I really don't know much else. The bot problem is just beyond crazy atm.