If one did, would it be a good idea to be constantly advertising that fact? What if authorities crack down? It's supposed to be stimulus and not take the money and stash it in your own monetary system-ulus.
One could see what we're allegedly doing as immoral. I don't see it that way. Just playing devil's advocate.
Is it really?
The government printed a shitton of money and handed it out to people to do whatever they want with it. There is no law saying it must only be spent in a certain way and investing it is the wisest thing anybody can do assuming they don't need it to buy groceries, etc. specially when considering how much money they have been printing over the past year and how that will cause inflation.
After all US dollar is already losing its value.