If a user changed their username before their account is deleted, questions they voted to close show their old username at the time of closure
26553
Further anonymize deleted accounts by changing the username in close/delete notices
44674
Vote to close a deleted question - bug?
19126
Old usernames stick to Community Wiki posts
158101
User deleting code after question has been answered
112724
Lost reputation points, when user asking the question no longer exists
137466
Etiquette for username changes
4823
When an account is deleted, don't auto delete its negatively scored posts on the meta site
122078
Does voting to close as duplicate erase earlier comments?
87725
Question history attributed changes to me that I didn't make
12919
Why are there folders in /Users of already deleted users?
109169
Do answers left on questions that subsequently get deleted impact the Answer Ban criteria for those users?
126149
Notify users of a question they closed being edited or nominated for reopening
72565
Does deleting my own question or answer attract penalty?
128139
Notify close voters when a closed question gets edited
43776
What should happen to a chat account after the parent account was deleted?
141459
Show some indication that account is banned from asking new questions
144007
User was removed - Why does it affect me?