Yeah, Saylor is way too 'all in.' But I do get how some people 'need' leverage in their lives (to the point of rationalising how it's a smart/logical move). You see it at every level of business, those folks that have multiple overdraft lines of credit from multiple banks, yelling/sweating, zipping around @ 140kph on the freeway all day keeping everything in motion/juggling it all...
Some land/buildings, some gold, some stocks, some crypto.... All cash and carry. If even all but one goes the wrong way, your biggest problem isn't trying to meet some margin call, it's still whether to go to Chamonix or Niseko this winter.