Why are we so afraid of duplicate questions or "do my work for me" questions? Wouldn't the community see this and won't answer.
This is how I've always felt about it. Instead of marking as dupe and being a jerk about it to a new user, just move on. Then the more friendly people can answer the question and get more rep and the high rep people won't have to waste time "educating" new users and can go back to trying to snipe easy questions off of New.
For further actions, you may consider blocking this person and/or reporting abuse
We're a place where coders share, stay up-to-date and grow their careers.
This is how I've always felt about it. Instead of marking as dupe and being a jerk about it to a new user, just move on. Then the more friendly people can answer the question and get more rep and the high rep people won't have to waste time "educating" new users and can go back to trying to snipe easy questions off of New.