I dont know why this old post was revived but let me share some details about auto-clicking.
Garys hood autoclicker will get you banned, yes. Nobody clicks every second flawlessly. Use a random interval clicker and use Runelite/Standard client and you will be good to alch for atleast 4-6 hours a day. Ive done as much as 14 hours a day, never caught a ban. Change the intervals from time to time. Doesnt have to be a big change.
If you use a static autoclicker, you deserve the ban.