I do not believe their use to be a requirement, at the very least, so in that, you are safe. Simply a means of communication.

[He imagines he'll be jotting down his poetry and notes elsewhere, with the intention of keeping them to himself.]

From what I've gathered, there are other breaches of privacy we must worry about far more. This business of sharing dreams...

[He closes his eyes a moment, shaking his head as he brings a hand to rest lightly against his chin.]

It is intriguing, certainly, but there is nothing more personal than that.