@kolegaotaku, thank you for your comment and question, I am glad the post is useful for you. Setting a proxy means that the user you choose will have your vote included when they vote for a witness. For example I chose @jerrybanfield as a proxy and when he votes for witnesses, my vote is included in his. This is useful if you don't know for whom to vote for and do not have time to research, setting someone as a proxy is the easiest way. I hope this makes sense.