Can anyone still see the date a .ai domain was registered? Recently the registered dates for these domains disappeared for no reasons when I click refresh on whois.com
Yes, whois.com no longer displays the registration date for .ai domains by default. However you can try out some of mentioned ways,
1. use some other whois services that show the registration date for .ai domains
2. websites like archive.org may have archived snapshots of whois information for a domain, check it too