Since I became a brony, I've been Loving and Tolerating in real life to solve the problems I have. Though I haven't had much experience with trolls, I too have seen the comments they've put on videos and such, and, unfortunately, a lot of the time it's followed by bronies lashing back at them. I agree with what you're saying, when I see trolls and bronies fighting I always step in and stop it. Because it's a big waste of time and hurtful words that could be solved easily with a little kindness.
Remember, bronies. Don't call the trolls fat idiots with no life, even if it may be true.
Love and tolerate. /)