One of the characteristic ways Jagex determines who is botting or not is through its heuristic detection system. This system takes all the data of previous botting bans and puts it through advanced algorithmic detection models to find out if you match any of the botting profiles they have previously detected.
This is one of the main reasons people choose to purchase private scripts to bot is because fewer people end up using that script. This is because people have to pay to use the script leading to fewer people being banned using that script and as such, Jagex has fewer examples of bans while people are using that script. This makes it a lot harder for Jagex to match you with other script users because of the low quantity of reported bans lowering the ban rates for that script.
Even through using a private script does greatly reduce the ban rate, it is not that only thing you should look at while deciding weather to purchase a particular script or not.
One of the main things that get bots detected is when they fall into a permanent loop, click on places they shouldn’t be able to click on, or break in any other way where a normal player wouldn’t normally play. This also encompasses the bot being too efficient at what it is trying to accomplish. You should always remember, a human can not perfectly stun alch for 16 hours straight without either messing up or taking a break.
For this reason, it is always advisable to purchase a trial membership for the private bot you want to purchase and test out the bot before you fully invest in it. One of the largest botting clients, Tribot, allows you to try out premium scripts for free if you have their VIP option.
Another thing you should keep in mind is how long the script has been on the market for. If the script has been on the market for over 5 years, you can assume that thousands of people have used, and gotten banned using that script rendering it useless when it comes to tackling the heuristic detection component of Jagex’s bot detection algorithm.
If you test out a script and it meets all your requirements, you should then go look at the feedback other people have left for that private script. This will tell you if the script is reliable and wont break after a short while. This will also show you how responsive the script author is answering other peoples questions and how active they are.
Overall, if you want a high quality script, you will need to spend a decent amount of money. But this money will be well worth it if you find a high quality script with a very low ban rate.
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