i'm botting kurasks on 7 accounts with 0 bans. i sell the accounts once they max melee.
bank manually and never get banned. full invent of sharks lasts about an hour and a half on 90+ defence. prior to this i bot 70 slayer, agility, quests and their requirements non-stop catching maybe a single ban per 10 accounts if i'm unlucky. i also bot nearly every other skill on the account for a pseudo antiban and easier selling when it comes time.
i normally only bot the accounts when i am at my computer and i don't bot the same activity for more than 2 hours regardless of breaks. if i ran a script 4 times in a row for 30 minutes with breaks in between on the same activity i won't use that script again until i've done another activity for at least an hour. (breaks do nothing though)
tl;dr; i normally just run scripts for 1.5 hours before switching to a new task. combine that with manual banking and you should never get banned.
ps. all 7 accounts are running in mirror mode on the same res ip and i write all my own scripts. (SuperSlayer "Coming SoonTM")
kurask value per kill: 4,773 gp
hitpoint xp/h with 90's: 23,000 xp
damage/h: 17692 damage
kurask health: 97
gp/h: (17,692/97)*4,773= 870,555 per account
870,555 * 7 accounts = ~6m hourly while i play other games