Look at the answer on Microsoft forum. What does "legitimate" mean to you? The fact that the system will work with this key does not mean that you have the right to use Windows legally.
I usually steal a few raw potatoes while my wife is cooking some potato dish. I have never had any digestive problems. But the taste is unique, not bitter at all, as described in the article.
I've never talked to their support team. I suspect that this company just doesn't pay taxes or something like that. I noticed that they accept Russian payment methods (for some users, as stated on their website). I am using the cheapest server and the lscpu command shows the AMD EPYC Milan processor. As far as I can tell, it's a Zen 3 processor, which is pretty cool for the price.
The proprietary RCS standard is owned by the GSMA. They can license the use of RCS to large companies such as Google, Samsung, or mobile operators. But can a private developer get a license and develop his own RCS client? I think not.
How is Cosmic's performance compared to Gnome?