To take monopoly over a board by posting just as much as any other three users at any time, thus causing that forum to die a slow death -
To cleverly(or not so cleverly) flame or edit posts of annoying spammers trying to incite laughter at other members.
A person that still lives the 8/16-bit era of games in his mind and because of that chooses to ignore today's reality and the world we live in, saying that it is evil and boring...
"This guy has been dynaing this place until he was the only one left and then it took him ten days to quit posting"
-"Hehe , that was a good dyna you pulled on that damn spammer, he will not be back soon."
-"There are too many of those Dynas in that old arcade to put them all in a mental hospital, might as well just leave them."