Duplicate answer as late answer from new user
11336
How should we deal with duplicate answers?
112391
How should one respond to "duplicate answer" flags?
25593
Encourage users to select 'Accepted Answer' for old Questions
31310
Dealing with quickly edited, copied answers?
50556
Force Accepted Answers on Questions by Inactive Users
112760
Bug when marking a question as duplicate
127414
How was this new user able to post two questions less than 40 minutes apart?
123066
Reviewing Late Answers in First Post Queue
83172
Acceptable solution for 'answer copying'?
16251
I accidentally marked the wrong question as a duplicate. How can I replace it with the correct duplicate?
147792
Is it okay to copy-paste answers from other questions?
39016
Inform new users if they can upvote an answer they accepted
113626
"Close as duplicate" - what if only the answer is a duplicate?
116288
How can I improve questions marked as duplicate?
32241
Why must I wait two days before accepting my own answer?
130860
What to do when your question has an old, stale, unanswered duplicate?
64859
Is it acceptable to add a duplicate answer to several questions?