Earlier quoted context omitted.
I disagree. Negative results are important. Null results are of very limited interest. The two are worlds apart. A null result simply means you tried something and it didn't work. But you don't know why. You haven't proven it didn't work. There are literally millions of reasons why something might not work. For instance, you could try to use compound X to cure disease Y, observe no effect, and conclude that X doesn't…
I understand that people generally mean 'null results' here, by your definition, when they say 'null results'. That's the intent. Null results are also important . Suppression of null results allows for p-hacking and confirmation biases to creep into research, and greatly reduces the power of literature reviews.
What I'm arguing against is publishing a null result as a stand-alone publication. This creates the illusion of it being somehow a "result", which is not (in fact, we should stop calling them "results" altogether). With a null you haven't proven anything, and thus it is not a sufficient basis for a publication.