Am I the only one noticing that this glitch starts by becoming Super/Hyper to phase through the lava? You can't use Super/Hyper in any zone except Doomsday for TSC competition, so you can't even set up this glitch. Granted, he does show a bit where the lava doesn't load and he drops through that way, but he doesn't pull off the glitch in question that way, so there's a chance that the cause of the "Act 1-2" as he calls it is tied to the lava using RAM when it shouldn't be.
Somebody's going to tell me that the glitch can be carried over to a new zone, and that it should be legal as long as Super/Hyper isn't used in the zone for which the stat is submitted. But if that were the case, then it would be legal to use Super/Hyper in Lava Reef 2 and Death Egg 2 so long as you don't transform in the boss area, which is a separate Zone and Act in the ROM (Lava Reef 2 Boss shares a Zone ID with Hidden Palace, and Death Egg 2 Boss shares a Zone ID with Doomsday). Now somebody will argue that it's a matter of looking at the title cards and treating the zones that way, making those two boss fight examples irrelevant. This is the point I want to focus on.
I say that indeed, up to this point TSC has used the title cards as its basis for ranking: all Act 1s (or at least ones with title cards that say "Act 1") in Sonic 3 & Knuckles actually end in the ROM's Act 2. The transition from one act to another is seamless or covered by a cutscene. This is what makes Lava Reef 2 Boss, Death Egg 2 Boss, and this glitch different: in order to reach the level where you collect your stat, the screen fades to black, and the same zone is on the title card for the intended instances of this, but with the glitch you can access a different zone with a new title card. I'm ignoring the Act number in all of this, because shields can obviously be carried from Act 1 to Act 2. My thought on all of this is that if you can't pull it off in a single zone, it goes against all precedent of how every other stat on the site is obtained -- doing something in one zone has never affected another.
inb4 somebody comes up with an obscure example and tears me a new asshole over it
Since this thinking suggests that the glitch should be banned in all zones except Lava Reef, I would say to extend the ban to that zone as well for rule consistency.
I'm only a forum admin and not a site admin, so I can't set a rule in stone. However, I am on the Rules Committee. My current opinion is to disallow this, and if you want my vote in the committee to be swayed, you need to show me two things:
1. A method to execute the glitch without using Super/Hyper forms, or a convincing explanation as to why it is allowed in this instance so long as it isn't used in a run on which a stat is earned
2. A logical way to explain Zone and Act distinctions (as I did in the last paragraph) that fits the majority of the other charts on TSC and that allows this glitch
What you guys do from here is up to you.