[whimsicalism]

I would love to see the source, I don't think this is a common phenomenon anywhere in the world.

Nor does it particularly make sense to me... why not just spray on delta THC-8 or 9, the whole point of synthetic cannabinoids is they don't show up on drug tests.

[htag]

Synthetic has different (but similar) effects. Synthetic might be cheaper than THC-8 or 9 for some buyers. I think it's plausible a good amount of users will prefer some synthetics in a blind test.