I just have to answer this. For starters, I'm a crypto investor, yet professionally I'm a full time software engineer. I'm also a miner and run a mining business in my spare time. Heck, I know other people that mine as a side income. So when you say look at Jeff Arndt's "Curriculum" and question whether he is mining or not is not something you know.
Secondly, WhoisGaurd is just a service provided by namecheap. It simply hides whois information which is a legitimate and safe thing to do. I've run domain name services for over a decade in the past and know the value of hiding your who-is information.
So you mean this website who offering mining hosting is legit? The website is actually built with WordPress and designed with Elementor and it looks like the website is not yet finish and unprofessional.
A legit business for me is not hiding their real location and information, unlike this website sample binance if you check them in whois their not hiding their identity because they are a true legit company. Look at the footer of the site no privacy policy, cookie policy, and TOS the site looks like an old landing page use only to promote directly. Check this website to the similarweb most of the traffic comes from direct sources so it means that also google doesn't want this website because it's not trusted and unprofessional(Not SEO optimized). The website is very slow and I'm sure the reviews are fake.
Look at the old archive of this website from here
https://web.archive.org/web/20180902024938/https://bit49.io/Does it look like a small shop selling graphics card and there is an eBay affiliate link? So possible that this website just redesigns and offers mining hosting instead.
So, for me, I'm sure that this website is not legit 100%.
In all honesty, I'm glad you are trying to change my mind... I was planning to host 10 of my S9's with these guys next month. They have a legitimate LLC formed in Delaware. They have a location in Colorado and in Russia as far as I was told. They also ask for you to accept cookies when you enter their site but that's not too important to me at the moment.
I'm listening to anything you guys might say. I know their website is not only somewhat unprofessional, but flat out wrong in some places.
I don't want to host with a company that isn't legit. I've got too much invested and also have several S17's on the way. From my research and correspondence with them, they appear to be legit but you never know. They have been slow to respond in some cases and I have been wondering why they don't have someone else answering emails when someone is on vacation for a week, which also happened to me.
Change my mind folks! And please give me an alternative place where I can co-locate some miners. My farm in my house can only handle so much...