I agree with Jack. Please explain why you want to delete this user account. Jira is designed to prevent you from deleting user accounts when it can cause data integrity problems, more details in https://confluence.atlassian.com/adminjiraserver/create-edit-or-remove-a-user-938847025.html
You could go through and find all the issues where this user commented, and delete those specific comments first. But this causes even more data to be removed.
If this request to remove the user account is GDPR related, please see the Server support guide. There is a specific guide in there called Jira: Right to erasure that explains specific steps you can take to complete this request.
Hello Community 👋, I'm a product manager at Atlassian, looking at improving change management capabilities across our products. In particular, we're looking at bridging the gap between Dev & ...
Connect with like-minded Atlassian users at free events near you!Find an event
Connect with like-minded Atlassian users at free events near you!
Unfortunately there are no Community Events near you at the moment.Host an event
You're one step closer to meeting fellow Atlassian users at your local event. Learn more about Community Events