One of the tactics trolls use when they become known is to gather focus towards them, or towards irrelevant subjects. Let's not fall into that, we don't want to use our time for anything else but to save those children.
Another tactic is to cause confusion giving time to the enemy. The enemy can then just wait for the dust to settle. We shouldn't let that happen. Every now and then we should pull our efforts together and go public with our findings (or give it to public for someone else to do it). That'll keep the heat up, and the enemy will find us too strong to troll.
What one should do when seeing a possible troll? Simply NOTHING. One downvote is ok, but writing any comment is just using our time wrong. Let's trust each others logic on noticing them.
Pick your topic, find and doublecheck the evidence, pull it together and write a worthy post/comment on that. Let's stay active and strong!