As I was once again clicking on the close vote for a question about 'what to write' it came to me that we the community ultimately decide what is on-topic.
For instance, the choice that critique requests are off-topics was made by the community 7+ years ago. I was too lazy to figure out when the 'what-to-write' was banned from the site, but I suspect it must have been at least that long ago.
The community has substantially changed since then, and enforcing choices made back then today has a bit of the flavour of a ritual or a tradition. Kudos to us for sticking to it, but perhaps we ought to make our own choices too rather than propagate the will of someone else.
For instance, there are a number of questions that get closed that fall in the critique or what-to-write categories that get answers, and quite good answers at that. I don't know whether now it is the time, but we could think about revisiting these choices made by our writing.se ancestors and decide again between us: