Others will claim it was their own work, spice up the wording and build their own personal brand.
Could we refer to these cases as "plagiarism"? It's the proper definition after all. Forking is different as it relates to code, not ideas.
You can see this in almost every discussion about computer science topics.
Look for example how many programmers are shit-talking about Java and they have no clue about certain design decisions back in the day.
Java was the language that made byte compilation and VMs mainstream. Together with XML (another heated topic) it liberated us from unnecessary binary data formats.
And even the language itself was a gift from the programming gods at a time when the most viable programming languages were C, C++, or Perl.
I will forever be thankful to Java for saving me from C++.