Template messages vary in their placement. For example, a {{merge}} notice goes at the top of the article, but the {{stub}} message goes at the bottom. Read the documentation at the bottom of a template for instructions on how to make use of it.
This user exists. This is not claiming that this user is not a bot, sockpuppet, blocked user, or inactive user, it is just stating that this user EXISTS. He/She/It/They would like to point out that the reader must exist as well.