So far I've noticed that the gnats are able to trigger the snapping heads on the traps, and that they're light/weak enough for the sticky insides of the trap to hold the gnats in there. Also I'm very surprised at how strong/fast the traps close, I had a venus fly trap when I was younger and it wasn't nearly as aggressive as what I have now. Also I couldn't find any bad smells coming from it but we'll see once I start filling it up a bit more.

IMPORTANT: I would like to add a note here for everyone that is reading this. It is not recommended to allow/encourage the reproduction of invasive insect species in your garden. Fungus gnats can destroy seedlings and fresh clones. I am only allowing them to thrive in my larger plants where the larva can't possibly eat enough roots to cause any problems, the smaller plants are going to be kept safe during the entire experiment.