BloodlustIt is assumed that each contestant will fight to his/her best ability, but still within the character's personality, unless specified otherwise. That means they will use any powers at their disposal. For example, even though The Flash doesn't clock each of his own opponents in the first picosecond in his own comic, it is assumed that is a viable tactic on this board since it is a proven fact that he possesses that level of speed.
It is also assumed that the characters fight at their optimum levels of ability - not explicitly weakened or unusually powered up for those who have variable power levels.
This is from the rules. That is why say that these guys use their full potential in these forums. Because unless specified otherwise, that is how these fights are supposed to judged.