I legit have an account that used no other wc script besides this, same world every day 8-9 hours a day. 60-92 wc at yews in edge 92-94wc at magics at wc guild and no ban.
The issue i think a lot of people have is they make their accounts obvious. If all you do is wc you'll be spotted. Take some breaks, train other skills, do some quests, log in and chat with people. Make yourself seem not like a bot, i also usually hide script paint so i can see public chat and ill talk randomly to others nearby. This script has got me to 94 wc no issues. So maybe it's not the script it's how often you're running it.