[ignoranceprior]

- Non-tech-savvy users might not instantly recognize example.xyz as a domain name. When you discuss your site in person, you might have to explain the TLD, whereas with .com, .net, .org, this isn't an issue.

- If the same domain name but with a more popular TLD exists, people might accidentally go there instead.

- Some outdated validation code (such as a regex to match valid email addresses) might not recognize the TLD, especially if it's one of the long ones. I'm not sure if this problem actually exists, but it could.