fxbs,
it was meant as how many users will load an indicator without fowardtesting it and say "My new system trades as soon as these show up!". ZZ's fit into that, that indicator does not have ZZ in its name showing another reason a new user may mistake it for a grill

edit: You are right that it isn't related to repainting indicators. But when I think of repainting I always think of the above scenario.