Why does Stack Overflow allow duplicate display names?
86451
Are usernames required to be unique?
115277
Why does Stack Overflow have a different upper interface?
148024
Stack overflow UI display is strange - what happened?
81510
Does registering [name]overflow.com violate Stack Overflow's trademark?
103254
What is the difference of closing for duplicate and flagging for duplicate?
57956
Why can't objects in Edit Mode have their own name?
110889
What is the most rampant duplicate on Stack Exchange sites?
75512
Custom ordering of duplicate targets is not necessarily honored on mobile apps
112391
How should one respond to "duplicate answer" flags?
36244
Duplicate flag links in 10k tools are broken
76360
Disable duplicate check for apex class?
22831
Changes to "close as duplicate" (part deux)
142520
Saving and re-using value of a footnote counter twice - how?
38992
Is the duplicate answer flags raised for exact copies of answers of different users?
85634
Am I allowed to make a Stack Overflow clone?
17602
Multiple addons using the same name
22176
Keep short history of user display names