We ran into this as well as our business used Skype for all internal communication for a time, and it was also used for remote interviews, because in the past m

We ran into this as well as our business used Skype for all internal communication for a time, and it was also used for remote interviews, because in the past most people has a Skype username. Now most don't, and Skype pushes that you sign up with your phone number, which is very hard to find, especially if you're linking to someone not from your country. There is no indicator if they used their local number, their number with the country code, their number with some combination of this, and so on. Likewise, it's not as simple as look for their number and add, you need to add them as a contact first then you can message them. It's really unintuitive and contrary to how people use Skype. It's using the method whatsapp, telegram, et.al use, but they don't really have a discoverability feature. You know someone, or you don't until you know someone who does. Skype should either have just ditched the username search or embraced it. They tried to make it both, but they really didn't pull it off well, and now there is an entire subset of the userbase you cannot find with their find feature.