I was using autoit sometimes but not nonstop. Just few hours (just to challange my coding skills). So far its few month ago and I am still not banned.
It is a mining bot. It can go mining come back and unload ores to station and go mining again. (Hardcoded)
What I did is I used for every movement a random sleeptime and also random speed. So if you move mouse somtimes its more delayed and sometimes its shorter. Also mousespeed is random.
But now I am working with C# but not finished. The wrote my own pixelsearch library and also my own imagesearch (sadly imagesearch is slower than from what I use in Autoit but still ok

). It is almost working full in background but only mouseclicks are not working in background.. this could cost me a ban while I am researching it xD. But still nothing happened and I hope it will stay so.