I found a user is copying an answer given to them (I mean word for word copy/paste, no changes or anything!) by another user as their own answer on two question less than ten minuets apart and I bet there are more (EDIT: There are more).
To me this is very rude, I would be annoyed if it was my answer and the user who posted the first answer has informed me that they have mentioned this multiple times.
What is the best way to deal with this?
I have dealt with the user before and commenting by me and others did not work, worse still the user is making good rep of this practice.
I decided not to post the user here but I will link it if others want to see it.