For awhile I've been confused by the two flagging options for duplicates. What is the difference between selecting
should be closed...
on the flagging menu?
Do the two flags indicate anything different to the moderators who review them?
Do they do anything different in the system? For example, I've noticed that only sometimes does my flag create the automatic comment "possible duplicate of...," but I can never remember which flagging process resulted in it.
If they work exactly the same, is there a reason that we have both options?
Is it preferred that I use one or the other, or does it not matter whatsoever?