Benjamin Franklin's schedule (from his autobiography) is a famous and probably factual example[1].
[1]: https://www.theatlantic.com/politics/archive/2011/04/picture...
I can see someone doing this and posting it online to keep themselves accountable.
Would you post what time you worked out everyday? Would you post how many hours you worked today? Would you post how many calories you ate today? There is a reason why this isn't a common way for people to use the internet.
The part after the schedule is weird for sure, but the schedule itself sounds fine.
I know some people will swear before god that they can function on little sleep, but the fact is that your decision making and judgement is seriously hampered by maintaining a long term sleep deficit.
Uhh, well, other than the fact that it's closer to 25% of my _available_ day (8h sleep, 8h work, 1h commute, 1h preparation, 1h meals), you mean?