Sadly, I'm late to the party & you've shut down access by the time I found your post here.

With regards to your question about use-cases, I've used Windows based web-VDI's in the past to run Chrome-based BTC trading bots & execute long-running operations where I wouldn't have otherwise been able to from home/office due to uptime constraints outside my control.

Also, I was unaware that it was even possible to deny new connections based on load average, until I saw you mention having done so. Sounds handy & I'll certainly be Googling to figure out how to do the same.