Stalk-flooder

Someone on your friend list who clandestinely likes or comments on your old pictures, so as to draw the attention of the world to your veritable foolhardiness, with the intention of causing immeasurable trauma, sometimes leading to Foticide(means deleting your own pictures, not to be confused with foeticide )

Being the stalk-flooder she is, she liked my old prom picture and subjected me to the ridicule of the whole world.