Akka Actor Patterns

I asked a question recently regarding Akka PoisonPill and the excellent answer that I received mentioned an Akka "actor pattern" known as "disposable actors".

Essentially, according to that user, a disposable actor is one that is killed (via PoisonPill) as soon as it is no longer needed, hence releases resources back to the actor system.

I Googled "Akka actor patterns", "Akka disposable actors" and the likes, and found no sign of any collection of known actor patterns.

So I ask: Is this "disposable actor pattern" something that is home grown, or is there in fact a set of known Akka actor patterns? If the latter, where are they documented?