Not sure if this has been mentioned before but:
Look into randomizing gathering nodes a little. Perhaps a few feet away from its last spawn location.
The way it is now, all a person has to do is place his mouse on one location on the screen and activate the script and just gather over and over.
If the node spawns close by instead of in the exact location, you could't use the script over and over. You would have to re-position your mouse after the node disappears.
- Spirit likes this