Activism is fine. Not on HN. Words are made up all the time, but "enshittification" is currently nothing more than a trendy piece of jargon that basically
only exists on HN (and maybe Reddit), and is
definitely not appropriate here.
> The word does indeed refer to something. Just because you disagree with it doesn’t mean it doesn’t exist.
That's irrelevant here. Virtually everyone would agree that the word "libtard" also refers to something, but very few would actually appreciate it being used.