I'm not really sure how Jagex holds the ips in there system, but I am just curious if I create an account on my home ip does that attach my ip to the account for good?
Yes, jagex has your ip in there system files. They know the ip every time you log in. It's only used for account recovery or flags for rwt and botting though. I don't think they flag accounts by ip though. If your account is banned all other accounts logged in on the same ip at that time will be banned automatically though.
Okay thanks I hope so If I was to sell the account, would it be okay to give the ip address that ive been playing on. Or does it have to be the ip that i created the account on (home IP, which i don't wanna give out)