Error 2025 $2 Dollars Toonie Coin?

Oh boy.

That is absolutely crazy, like JimmyD said just pop the core out.

So is selling counterfeits but it doesn't stop them from being listed.

Most likely this person has some scientific background and is popping the insert without damage

That is a huge assumption. Never underestimate the power of greed.

All you need is some basic physics, specifically metallurgy and the expansion or contraction of metals.

Like most substances, metals expand when they are heated up, and shrink when they are cooled. Different metals expand and contract at different rates.

A toonie, like any other bimetallic coin, is made of two different metals, in this case aluminium-bronze (core) and stainless steel (ring). So they will have different expansion coefficients. I'm not entirely sure which one of those two alloys is going to expand more when heated; if steel has a higher expansion coefficient, then all you have to do to get the two pieces of the coin to fall apart, is to heat it up, since the ring will expand more than the core. If it's the core that has the higher expansion coefficient, then the oposite is true, and all you have to do is cool it down.

Now, the RCM may have tried very hard to solve this laws-of-physics problem by tweaking the alloy compositions to try to get the two expansion coefficients to match, to prevent this from happening. They might get very close, but getting a perfect match is nigh-on impossible.

And if you can rig things in such a way that the core is cooled while the ring is heated at the same time, then having the core drop right out is a near-certainty. Doing this is simply an engineering problem, not a laws-of-physics problem.

TLDR: never pay big money for a "missing core" or "missing ring" error, since it's way too easy to separate them. To warrant big money, you'd really want to see clear and obvious evidence that the core was already missing before the coin was struck.

Bronze generally has a higher rate of thermal expansion than steel, expanding roughly 30-50% more for a given temperature increase. Bronze typically expands at a rate of 16.8-19.0 \(\times 10^{-6}\)/°C, while steel generally ranges from 11-13 \(\times 10^{-6}\)/°C.
But the thermal expansion is not directional. If you heat a ring, the outer diameter will increase and the inner diameter will decrease.
So, heating won't help to loosen the core despite the difference in expansion rate between the core and the ring.
Cooling would work because the core will shrink. But the difference is still too small for it to fall out- cooling by 40C (room to freezer) will create a gap of < 0.015 mm only
But, I think, there is another factor that simplifies "Toonie disassembly". The normal tolerance ranges allow for occasional combination of a smaller core with a larger ring AND a weaker or mis-aligned strike so the core is not fully locked.
I have seen many toonies, especially from 1996, that have a tiny gap between the core and the ring.
I guess, if you take a few rolls, there will be some with somewhat loose core which you can identify through visual inspection.
Cool it down, hit it with a rubber mallet, and you may have something to sell on ebay