Choosing what to cover
Topics come from watching where people are visibly confused in public. A forum thread where forty replies contradict each other. A question that keeps being asked because no existing answer settled it. A widely repeated claim that nobody seems to have traced to a source.
That last one is the most common starting point. A surprising amount of accepted advice turns out to rest on a single small study, a misread abstract, or a press release. Finding out which is which is most of the work.
Topics do not come from keyword volume, from what pays best, or from what a merchant asked to have covered. Nobody has ever asked, and if they did the answer would be no.
Research and testing
Two kinds of article appear here, and every article says at the top which kind it is.
Researched. Most articles. Claims are built from primary sources: peer-reviewed studies, regulatory filings, manufacturer specifications, teardowns, and the aggregate of long-run owner reports. Secondary sources are used to find primary ones, never as evidence themselves. If an article's central claim rests on one study, the article says that it rests on one study.
Tested. Some articles. I bought the thing with my own money and used it. There is no review programme, no loaner units, and no manufacturer samples, because a review of something you did not pay for is a different kind of document than a review of something you did.
The distinction matters and it is never blurred. Hands-on use tells you about build quality, ergonomics, and the failures that only appear in month four. It tells you almost nothing about durability across a thousand units, or about safety, or about whether an effect is real. Research tells you the opposite set of things. An article that had access to only one of the two says which one.
How evidence is weighed
Not all sources count the same, and the article says which it is leaning on.
A systematic review outranks a single trial. A trial outranks an observational study. An observational study outranks a mechanism that sounds plausible. Anything outranks a confident assertion with no citation, which is the most common thing on the internet and counts for nothing here.
Three things get flagged in the text every time they occur: when a study was funded by a party with an interest in its result, when a finding has not been replicated, and when the strongest available evidence is still weak. That third case is common. It gets stated rather than smoothed over.
What disqualifies a recommendation
A product is not recommended if I cannot find out who actually makes it, if its central claim cannot be checked against anything outside its own marketing, if a documented safety or recall history is unresolved, or if the same result is reliably available for less. Being unavailable to buy through an affiliate link disqualifies nothing. Several recommendations here earn nothing.
Corrections and updates
Published articles are revisited when the evidence changes, when a recommended product is discontinued or revised, and on a scheduled review regardless. Anything updated carries a visible date.
Corrections are made in place and marked, not quietly edited out. If a claim was wrong, the page says it was wrong. If you find an error, send it to me with the source and it will be fixed.