The point is that you should include actual details in the dice roll so it is labled in a way that you don't just roll a d20, get a 4 and say it was for a history check afterwards. Then roll again and get a 20 and afterwards say that it was for your daily power.
If the description given to the dice roll includes details like: Crushing Surge vs AC (Dog 4)
then there can be no ambiguity and no doubt as to what the roll is for.
I don't just want a description in the game thread of an unlabled dice roll.
And yes, the comment was for the benefit of those new to pbp.