aitakahashi - How well did he explain the name to you?

Look at the profile of Deep. Notice his "city"?

I am suspicious, but willing to let the posts speak for themselves.

I am wondering about the motivations of someone from Yahoo who would identify himself as "Deep"

I would expect that to scare a number of prospective contributors away.  i.e. not very good for the health of this hub.

Deep - your response to me did not exactly reassure me.

I will keep a suspicious but open mind for now.