I think trolling a just lame, though I don't see it often.
But I have trolled once, and I will explain why in a second. I'll just warn you ill seem really nerdy or pathetic or something, but whatever XD
So if you don't know about quizlet, look it up.
The five kids in my French class in 8th grade and I decided to make a quizlet group, so we could go there to do work instead of actually getting taught. So we had this whole empire and stuff XD
Then, one day our group was hacked. So, my friend and I tracked the person down, found their group, made a fake account, and trolled their chat box. We also set high scores on all of their sets, even though most of them pertained to "cute cars" and Spanish, neither of which we knew anything about.
I don't care how stupid that sounds, it was hysterically fun.
So yah, that's the only time I ever trolled.