There is no need to tell him directly, as he will moſt certainly have gotten alerts for your thread.
As he ſaid in the Plan Update #03,
I’m pretty ſure the moſt effective way to get you ideas into the game is to come up with ſome really good ones (you can read what they’re looking for in the Plan Update #02) and hope for the beſt, rather than peſtering InterAction Studios until they give in.