[dymk]

I've made peace with people sending me a bare "hello" with no context. I ignore it until there's something obvious to respond to. Responding with the "no hello" webpage will often be received as (passive) aggressive, and that's a bad way to start off a conversation.

Usually within a few minutes there's followup context sent. Either the other party was already in the process of writing the followup, or they realized there was nothing actionable to respond to and they elaborate.