I believe there must be lots of ways for institutions and companies to hide it: special purpose vehicles, subsidiaries, offshore accounts and companies, hiring agents, etc
I don't particularly disagree with this point
As it may or may not be true. If anything, let's assume for a moment that it is and institutions as well as companies hide their investments in cryptocurrencies. But then we won't know that, right? Therefore, their well-concealed investments don't mean a thing to us as we would still be dreaming of the times when institutional money would come to market, even though it has likely already been there for quite some time (as per our assumption)
Each institution has its own financial audit, so they will not be able to hide the wealth they get from the audit, unless the director of the institution intends to corrupt, they have to work together to hide some of their finances, and save it in bitcoin, that's possible
I guess there might be workarounds (loopholes or whatever)
But technically, you should not ask me or question my point as this is not what I came up with here. I know that the public institutions (e.g. pension funds and their likes) are allowed only to invest in certain assets, i.e. the classes of assets which are explicitly listed in their investment declaration (or what it is called). Indeed, private institutions are a completely different animal, but then we may never know what they are investing in unless they intentionally make it known to the wider public (read, they want us to believe in something)
I believe there must be lots of ways for institutions and companies to hide it: special purpose vehicles, subsidiaries, offshore accounts and companies, hiring agents, etc
This is the post (and the poster) which you should focus your attention on