Many organizations, such as the American Astronomical Society , warn that these services can be deceptive if they imply official scientific recognition. Meaningful Alternatives
Since these are private registries, different companies can "sell" the same star to multiple people under different names. buy a star and name it nasa
If you want to honor someone through astronomy without using unofficial registries, consider these legitimate options: Rules to Name a Star - IAU Office for Astronomy Outreach such as the American Astronomical Society