I know there is language about opportunity attacks that says:
You also don’t provoke an opportunity attack when you teleport or when someone or something moves you without using your movement, action, or reaction. For example, you don’t provoke an opportunity attack if an explosion hurls you out of a foe’s reach or if gravity causes you to fall past an enemy.
But Polearm Master seems to change that a bit:
While you are wielding a glaive, Halberd, pike, or quarterstaff, other creatures provoke an opportunity attack when they enter your reach
If I pulled someone to me, who is 15 feet away, do I get a Polearm attack as they enter my reach? Then they are 5 feet from me and take the lighting lure damage?