I don't get it. It makes you dizzy? So what?
Since everybody seems to use them, I looked into it a while back. No obvious health risks to occasional use, unless you have a pre-existing heart condition, and/or use other medications that they could interact with. I would guess that changes if you used them every day.
OK, I even bought some as a courtesy to visiting bottoms who might want it.
Last year, I was reading some of the "classic" gay novels, describing gay life in the 40's, 50's, 60's. One of them was describing clubs in NYC where guys were dancing with washcloths soaked in chloroethane*, which has similar effects, draped across their face.
Is that even possible? To reiterate, I just don't get it.
* Interesting aside for nerds** - although I am too lazy to look up the reference now, Chloroethane was a reagent used for tetraethyl lead production, which young whippersnappers might not know was once the major anti-knock additive in gasoline. Back then, barrels of it could be had for next to nothing. Now it's hardly made at all. Such are the ways of industrial chemistry.
**Even more interesting, it turns out that industry isn't the main source of alkyl nitrates (poppers) in the atmosphere... They are abundant in the deep ocean and released to the air by upwelling. Though I never published it, I've observed unexpected NOx gases being produced when water flows through massive sulfide deposits (copper mines) which started out as deep-sea "black smokers" gigayears ago. Possibly related.
So... Are deep-sea fish perpetually huffed-out? Are they all gay? They do seem to have disco dance lights... Food for thought.