some scripts like idung you could run for days with no worrys and some are well detected cause of the activity its doing(fdk) but atm i dont think its worth risking it with bots
Atm there's massive anti botting updates being implemented by jagex so Id stay out of the botting scene for about a month. After that it really depends on the script, but if its a good script + your checking up on it every hour or so you should be fine.
RiD hasn't had a single ban from Guideline followers in over 4 years (The bot was brought to it's current quality August 10th, 2008). The Guidelines happen to say 8 hours a day.
However currently RiD is down until RiD tests and releases v2.0, which will be in a week or two.
But yeah, for other bots it really depends on the quality of the script and what-not
Like other's have said it defiantly depends on the bot.
RiD=Slim to none.
Simba=Probably going to be alright.
Powerbot=Vip scripts might get you banned.
Free scripts your probably going to get caught at some point.
Rid/Simba still playing the odds, but nothing major. Free scripts are asking for ban soon. I feel like they are moreso targeting farmers than personals at this point, but you never know. They certainly are not done.