I feel like we should all place our wagers now so we can come back in a year and see who owes who a beer.
I don't actually see why it would be difficult for people to get away with fake "bathroom skips" multiple times. Or whatever - fake anxiety skips, fake sensory overwhelm skips, etc. It might be inconvenient for large parties - but even there, people surprise me. But for a party of two or three friends who came to the parks together? Disney has no record of when they entered the line. Is the harried CM overseeing a steady stream of people going to recall two or three random faces? If they're planning on leaving the line, they could easily stagger themselves vs. entering together. Furthermore, if questioned, they could easily say they have IBS / anxiety / etc. and they are doing exactly what Disney wants people with those conditions to do - utilize the RTQ option.
Or, alternately, maybe they don't plan it that way. But this system becomes fairly normalized, and a husband and wife or two or three friends are standing in line and go "Ugh. This line is taking forever. Does that special effect look scary to you? Yeah me too. I think maybe my "anxiety" is flaring up". Nudge nudge giggle giggle. Again, they stagger their exits. If anyone asks (which why would they,) they met and bonded online specifically because they both have the same medical issue.
DAS users are tracked in Disney's system. RTQ users, as I understand it, will not be. That gives them a great deal of leeway. They can say they have whatever medical condition, assume the CMs will not remember them (which they probably won't), and so on. The TikTokers will have a field day with this because it's a new "hack" that will drive tons of new views.
I may be totally wrong of course. I totally accept that at this point, none of us know for sure. But if we're placing bets and want to check back a year from now - my bet is that abuse of this system will be as bad or worse as abuse of DAS has been, and will be more disruptive because it involves people shoving their way out of lines.