If you mean the forum NFTs, the token metadata already points to a small JSON file already stored on another blockchain (Arweave). AFAIK the current Ordinals explorer only displays image files. So while I could inscribe a JSON file and attach it to an ordinal it wouldn't display on the explorer.

Counterparty users are looking for a way to host the image data for their tokens as an inscription but its a matter of getting the xchain explorer ready to read it as part of a token description.

One of the coolest experiments I've seen so far is called Rare Ordinals, where ordinals are being tokenized on Counterparty to leverage its market system (dispensers & DEX).

I've heard a market for ordinals is in development.