I predict a time when the ants figure out how reach the feeder: clog the surface of the oil/water trap by sending massive numbers of ants to die, then using the flotilla of dead ant bodies as a bridge. They're right bastards like that.
I think not.
The only reason massive numbers of ants would attempt the feeder is if successful ants left a scent trail to bring more ants. And ants that make it past the oil/water trap and into the nectar still die and thus do not pass the
word scent on to their brethren.
tanstaafl.