Seems kind of pointless when you could just eat/insufflate/iv something.
I get not wanting to put caustic/acid chemicals up your nasal cavity and into your sinuses.
BUT,
I mean, if you're already setting up a rig and dissolving the substance, filtering and all. Why not just use it intravenously ~99% bio-availability as opposed to slightly less rectally? What the big taboo difference from penetrating a vein with a needle and penetrating your anus with a syringe?
OR
Ya know, just eat it.
I mean seriously.
You ever hear of the phrase "If every car you see is going the wrong way, maybe you're the one driving on the wrong side of the road?"
You're late to the party, get on the right side of the road and put some drugs up your butt.