A customer contacts me and says 'I have an error'. After several emails I manage to get them to send me a screenshot of the error. The error message describes the exact problem and what to do about in one short sentence. I type pretty much exactly the error message text into my reply. This solves their problem. I think they see 'error' or 'warning' and they don't even read the rest of the sentence. Extraordinary. But it has happened more than once.

They were taught not to read errors because they encountered thousands of errors (in other software) that were less helpful than that one.

Most people have an adversarial relationship with software: it is just the pile of broken glass they have to crawl through on the way to getting their task done. This understanding is reinforced and becomes more entrenched with each next paper cut.