Suppose, you see a user's profile and notice the following pattern: Asked several questions, accepted a few answers but has not upvoted a single answer. The user is probably aware about the voting mechanism as the user's questions, answers to his/her questions have been upvoted by the community.
I think we need to intervene and encourage the user to vote more often but I am unsure as to how to do this.
Any suggestions as to how to do achieve the above? I think diplomatic and gentle approaches are preferable.