In the past I’ve written blog posts about how the facebook groups are bad places to get advice. The exception to this is when it’s a curated group of people where you know everyone. Recently in a group someone was asking about where to find some fuse to make a fake stick of dynamite. I’m not sure why you would want that, however that’s a different conversation.
In the comments of the facebook group, someone added this comment:
This is horrible advice. First of all, that doesn’t make flash string. Soaking cotton in lighter fluid makes a wick. It will burn, but not like flash paper. What will happen is the cotton string will light on fire until the lighter fluid burns off, then the string will burn, leaving a lot of residue. It also won’t happen in a flash, it burn like a wick with very little fuel, because that’s what it is.
Be careful out there when you ask for advice on the internet!