The community runs on trust
Every time someone shares evidence, they're vulnerable. They saw something that mattered to them. Your job as a reviewer isn't to be right — it's to be useful. A well-phrased 'this might be the window reflection at 0:14, here's why' is worth a hundred 'fake.' comments.
Start with what's interesting
Before you debunk, name what's genuinely compelling about the clip. Then explain the alternative explanation, then say what would strengthen the case. This isn't politeness theater — it's how you stay calibrated yourself. If you can't find anything interesting, maybe slow down before commenting.
Be specific, not vague
'It's fake' is useless. 'At 0:23 the figure's left edge is parallel to the curtain seam, which suggests the curtain moved in front of the camera' is a debunk worth posting. Specifics help everyone — including the original poster — learn.
Self-debunking is the highest skill
The investigator who debunks their own clips before posting is the one whose unexplained clips get taken seriously. Use the Debunk Detective mindset on yourself first. Mark debunks publicly. The few clips that survive your own scrutiny are the ones worth real attention.