Really simplified, you run a piece of grounded copper wire all the way to just above the top of the antenna. It prevents static buildup on the antenna itself.
It would be nice if there was a list of antennas this is not required for, though it is likely I'll do it with whatever antenna I use.
That is very interesting and has considerable implications.
Is this thought to be related to any physical characteristics of the antennas you use or an engineering defect born in Marketing, designed by Engineering, mnaufactured by Manufacturing and shipped by the Shipping Department?
IOW, if that is the solution, why don't manufacturers adopt the ECO (Engineering Change Order)? There are a number of antennas world wide which are under warranty if the Manufacturer needs to and will "do the right thing."