I almost offered $0.25 just to huff and puff about ruining the coins but I just went ahead and closed it shaking my head...
In general, I could care less if someone ruins a coin. The better, scarcer coins are usually in good hands...while inventories for the rest are normally very high.
Clear plastic paper weights with embedded coins are not uncommon. In this case, they've just been stingy with the acrylic. If desired and worthwhile, it can be removed with a long soak in a halogenated hydrocarbon. Cal
The thing is, coins given this treatment are usually polished first to "bring out their shine", so soaking them out is hardly ever "worthwhile". I've still got a toilet seat and lid with around $16 FV of silver in it, but I'd probably spend more on solvent than I'd get from the junk silver. Not to mention wrestling with my conscience over how to dispose of the not-very-green acrylic solution.
I've never seen a truly valuable coin embedded in cast plastic and have seen more than a few copies so embedded. I suppose there might be some of value though, possibly gold coins that have significant melt value. Cal