Not pulling your goalie on a delayed penalty when all ready on the power play.....would not be seen as being toyed with.
Over the years I have developed many strategies to keep the score respectable without embarrassing another team nor toy with them which in my opinion is worse.
The question was would you pull your goalie on a delayed penalty call when you are already up by 5 goals and currently on the power play.
I would be yelling to my players to keep the puck.....which normally I would be telling them to give the puck to the other team thereby maximizing the amount of time playing two men up. My goalie if he/she came to the bench I simply would not replace with an additional skater. Usually the goalie would already understand that I did not want them to come to the bench.
Strategies I have used to keep the score down:
1)Keep the clock running by eliminating faceoffs as much as possible....shortens the game and limits scoring opportunities. I ask my goalie to come out and stop the puck before it goes for icing and set it up for the defenceman to come back and get it.
2) have my team dump the puck in and play a 1-2-2 shallow with the object of trying to make their opponent to turn the puck over between offensive blue-line and center ice, then you can go on the attack. This comes in handy when protecting one goal leads late in a game. This limits offensive chances and is not obvious to the other team as you still are competing hard.
3) I use the 3rd line to start the power play along with 5-6 defensive pairing. Keep them out for most of the powerplay.
4) Work on difference breakouts that we have practiced in practice but not our most game used one.
There is more but it depends on the game and the circumstances.
I never move forwards back to play defense or defense up to forward, nor do I have a minimum number of passes rules before shooting....
Play hard, play fair