Because your taking advantage of peoples lack of knowledge how easy this is.
You even stating ''botting on the same IP address then it is unlikely to work.''
Which is nothing new, botting on a proxy, then unbanning it is extremely common and super easy to do.
Jagex empoloyees are taught to / automated systems to unban your account if the ban comes from a different IP, and contacting them via social media speeds up the process of this.
I dont see a single vouch on your thread from people that botted on the same IP, the fact you are taking peoples wealth on the account, charging per attempt AND accepting same IP ban attempts is just milking the cash which was why I came towards with my little negative comment, hope explains my comment.