I've seen guys fooling around with "ghetto tubeless" too. Because I've been a frequent firsthand witness to what living with tubeless bicycle tires is like, I don't have to do it myself. For this I am grateful.
Even if you could come up with a tire/rim/liner combination that was as easy to mount and dismount as a normal tire and tube (ha!), using tubeless means living with sealant. Sealant curdles and clumps up. Sealant needs replacing a lot more often than I get punctures, and I ride everywhere I go. And sealant is a bothersome mess whenever you have to deal with it, which is basically anytime you do anything with your tubeless tire.
Realistically, if I used tubeless tires, I'd have to service my own tires approximately ten times as often as I do, taking a lot more time to do so, and I'd have to wash them out all the time. (I've never had to clean out the inside of my own tire so far.). In return for this hassle, I'd get... nothing. Really.
Guys talk about how they can run lower pressures with tubeless, but my tire pressures are predicated on what keeps the rim from bumping on the ground. If I could eliminate pinch flats, I still wouldn't want to bash up my wheels, so that changes nothing. I suspect it's bullshit for other riders too, that they could use identical pressures with tubes if they only tried it.
Likewise, the legend of tubeless tires' flat prevention does not matter if you end up doing more tire changes and messier service more often. What's the point?
It's just another expression of motor fetishism with bicycles. All that stuff has been dumb so far, and whatever guys misapply to bikes from motor vehicles in the future is also going to be dumb.