I don’t think it’s that much work, if you have a general sense of your knowledge domains. I described the platform I work on in a few sentences, my knowledge level, and what I like out of a response and it’s been pretty great for that.
I was thinking of a more generalized one with "personas" which use things like embeddings and hypernetworks to "know" you.
Of course the presumption here is that more useful results would avail themselves under the added training load. It might be just as good as the simple usecase.
For instance, ideally it would know your strengths, weaknesses, blind spots and misconceptions so it will know what you don't know you don't know.