Here is the answer to the question about why Hut 8 borrowed money recently to buy more Miners, directly from Head of Hut 8 IR:
“So, the reason is there is no available supply directly from the leading manufacturers than can deliver within the first half of Q1. Because Foundry had pre-purchased this premium equipment last year, it was our absolute best / most cost-effective option to get top of the line Micro BT equipment we want with delivery asap (over the next 6 months) to allow us to maximize the ROI available for in production equipment while the supply constraints prevent the hashrate from moving up as quickly as it would normally be expected to…. The term of the loan is only 12 months to minimize the interest expense to the maximum extent possible.”
Seems like a very good move to me. Next earnings early-mid March for December 31 Q4/2020 Year-End should be terrific and will only go up from there with this additional 425 PH/s, over 40% increase and largest Bitcoin holdings, all the price appreciation is since the last quarterly Q3 results.