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Corrections are the best post.
This is a reference, not a practice. It does not read houses, does not take clients and has nothing to sell, so the one letter it cannot answer is the one asking what to do with a particular flat — the read it yourself guide is the honest answer to that, and hiring a practitioner is the other.
What is worth writing about is what the site is for. A source that contradicts one of these pages, with the citation. A room, a case or a school the guides do not cover. A drawing that is wrong, and where. A translation or a character given badly. Corrections are the most useful post this site gets, and the methodology page explains what the site does with one.