[ElViajero]

I guess that it is part of the curse of knowledge.

Even the article starts by

"I just want to share my thoughts on Kafka after using it for a few months, always from a practical point of view. I don’t know anything more than the basics about Kafka internals. "

It is just confusing for anyone that does not know that Apache Kafka is a software application to process queues.

The article is named "Starting with Kafka" but assumes that you have knowledge of what it is, its use cases, and other not-so-basic information.

[ofrzeta]

I think if someone were to write an article on the writer Kafka they would not phrase the headline "Starting with ... " but something like "Reading Kafka" or "How to read Kafka". I am not a native speaker, though.