This stuff is excellent Frightday night material (a relatively old but appropriately sensationalist link). It’s the Outside in candidate for a conceivable postmodern religion, channeling video game ontology into an off-the-cliff practice of the numinous. It has to be a better place to look than Odinist revival (which it might ultimately eat). QS fanatics would merit an argument, and better still, they’d be immunized against it.
NRx would find a lot to talk about with these folks — until they pulled the trigger. For instance: Exit. Imagine a near-future world in which political disputes were dominated by QS cults. It would be remarkably tolerant of electoral processes, whose defects would have been made a matter of indifference. Divide the social body on the issue of greatest political rancor, and submit the contest to a ‘resolution’ procedure with significant probabilistic input. Whoever loses terminates themselves, in ‘this’ sector of the multiverse. The outcome, from the perspective of the QS religion, would be that branching universes acquired increasingly distinctive ideological flavors. Everyone ends up with the future they selected, in worlds pre-cleansed of dissent. Elections would be OK, but why not just roll the dice? The important thing would be the schism, and from the QS perspective, every true devotee ends up on the right side of it. This is the future you chose would actually always be true.
Replace elections with the flip of a coin, accompanied by mass suicidal auto-selection. On the day this becomes an articulate political program, the Quantum Suicide religion will have arrived.