You should read this: https://www.mpgh.net/forum/276-runesc...gone-good.html
To summarize it:
Jagex comes with an update which patches botting (together with Jacmob (RSBuddy's owner), RSBuddy and others close down their bot clients.
RSBots and PowerBot have stated to make a comeback, RiD and Simba are the only still working bot clients.