You seem to be making an assumption that I'm not going to (or shouldn't) use Kafka as a database for my time series data - when in fact that is how we use it.

You seem to be making an assumption that I'm not going to (or shouldn't) use Kafka as a database for my time series data - when in fact that is how we use it. I store and query messages in certain Kafka Topics - it's not all our data, but it is a non-trivial amount of it.