This user is aware of how silly this huge table looks on their user page, but acknowledges that its real purpose is twofold: statistics and standardization.
This user provides information using userboxes because he or she is bored.
Watch it guy, this userbox is gonna overload you and your computer, maybe even Wikipedia.
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.