if that meant propping my shares by a few millions ahead of an IPO

is that what it means, though? the people participating in /r/place are the same people that generally created the content of whole reddit. if /r/place will show that “fuck spez” is really prevailing general sentiment, not some minority view, it means that the mass who is on reddit just to scroll through stuff will sooner or later have nothing to scroll through. putting your money into something that literally just passed its peak and is on a downhill slope from now on is not wise decision and the investors are many things, but “dumb” is not one of those things.