I don't mean to be a jerk or anything, but a burnout is something you better not blog about or write about on facebook or speak about in any way that can be traced back to your real name, if you ever want to find another job again. Potential employers will google the names of applicants before an interview, and if the first thing that comes up is your name and photo on a story about your first job burnout, you're goi…
Not talking about things like this, keeping it secret, or (as you just did) encouraging a social prohibition on hiding this information is what leads to a burnout culture.
It's the same social taboo that prevents people from talking about their suicidal tendencies, even if talking about it can lead to help.
And in a weaker sense, it's similar to the taboo in many private companies in the US to keep one's salary information private, even though that taboo mostly ends up putting more power into the hands of the employer. (Discussed here recently at https://news.ycombinator.com/item?id=9580871 )
People get burned out because they are overworked. Employers either overwork employees deliberately - in which case not talking about burnout means there's no coordinated response to resist employer pressure - or don't realize that someone is being overworked - in which case it's best to encourage people to be able to identify what burnout feels like or looks like.