Unless you also build the AI that buys and physically assesses these products, this will be gamed also.

With headphones it's especially bad as manufacturers tend to enshittify existing product lines (cheaper materials!) without indication on their product pages. I'm holding on to my DT990 as long as I can...

yes, of course, I recognise that it is quite tricky to distinguish reliable products from those that can be defined as ‘junk’... that's precisely why I thought of giving each search a large amount of data referring to the product you are looking for at the ai in order to make a sensible ranking of the products and thus suggest only those most suitable for your needs. At the moment it is only an alpha, but the goal is to make it something that objectively can save a lot of time, avoiding returns and making users more aware of what they are buying.

Who benefits from writing Amazon reviews? I've written them for years for products I purchased, for no other reason than to let other people know.

There are many companies that will pay people to write positive reviews on behalf of them or some third party (even though it's against the terms of service).

Even without that, Amazon itself (via the Vine program: https://en.wikipedia.org/wiki/Amazon_Vine) will pay you in goods for writing reviews. I was a part of that program for a few years, and found my review quantity increasing and quality decreasing as I wrote more just to get more free crap from Amazon.

Many other marketplaces will also incentivize reviews in various ways. You personally might have more integrity, but the internet as a whole doesn't...

Those are clearly labeled. And Amazon Vine reviewers for the most part do make an honest effort to review the product. I tend to ig ore them in favour of those 3-4 line reviews in small caps and iffy grammar. That's a much better signal for reliability than a blog post length Vine review.

By labelling some reviews as paid reviews, readers are fooled to believe other reviews are not paid.

Some offer discounts and gifts and such for a review. They don't even say you have to give them a good review, and so they'll justify it as an anti-bias thing. But you have to show them the review, and it's a little odd to give someone a bad review right after they offer a free gift.

The big hint is that they'll have an overwhelming number of 5 star reviews compared to the competition and often average around 4.95. Some are actually quite mediocre. So I'll usually avoid anything above a 4.8.

Check your local library, ours give patrons access to consumer reports online for free.

Public libraries are awesome.

I would definitely pay for something like this if it was accurate. I go through plenty of bad headphones, and I once even paid for a piece of software that makes the headphones less bad (couldn't fix the battery life though).

But how do I know the reviews are reliable and not being manipulated by the brands in some way?