You said it very correctly and i have had similar experience in past, but i never reacted to it...because i know its not the fault of the jealous fellow rather the fault or loop hole of this system.
The dev must look for a better filtration mechanism, i am not saying that flag should not be there but at the same time there should another person who should review the flag....and must investigate whether the flag is genuine one or a personal attach or an attack out of ego....
we minnows cant do much ...but some good whales should come to raise their voice then only some development can happen in this regard.