I learned about colorblindness in a scientific visualization seminar. Before that seminar I wasn't aware that my choice of color scheme meant that some people couldn't interpret my plots. Now that I know, it's really easy to just google a colorblind friendly color palette and use that instead. I wish I had known earlier, and I hope that by people talking about it and hosting seminars like the one I attended it becomes a more standard practice.
I think if I were to do that, it would be considered rude. But this seems to be related to what the author is saying. How disabled is disabled enough? The author is autistic, but to most people she appears non-autistic, and she didn't even know herself until age 42, and people question whether she's disabled enough to be considered disabled.
You can be diagnosed from childhood and people will still question an Autism diagnosis if you can hold down a job. Which is why the correct answer to this question is always no unless accommodations are absolutely nessecary.
