Maybe it's not exactly the same thing, but have you ever tried to do a search on Google with and without cookies enabled?
The Google search engine first highlights the results of advertisers (i.e. those who sell something and buy advertising space from big G).
Secondly, then come the results that have more relevance to the normal life preferences that we disseminate every day on the web.
These "preferences" are always extrapolated from navigation cookies.
This is no mystery and obviously Big G has very sophisticated algorithms that it has never shared (especially due to competition from other search engines).
As for the CWS, it's more or less the same thing, in the sense that the extensions with the most ratings (stars) are highlighted first.
So if you have 1000 friends on Facebook and you convince each of these friends to give you 5 stars on one of your extensions, and then these friends do the same thing with their other friends, your extension will pop up at the top of every search result even if, at equal performance, there are 100 other similar extensions (perhaps more valid and beautiful) which will appear only after much scrolling down the page.
i.e. You have an extension called "pear" which has never had a rating (either positive or negative) and when you search for it in the store apples, bananas, cherries will appear and only very far down this list will "pear" appear.
However, I noticed that if the name of the extension is written in full, it appears on the first page.
I then have the impression that 90% of extension users actually give an evaluation to an extension when it is not at all (or partially) up to expectations, while when an extension has no bugs and works perfectly they forget to give 4/5 stars even after using it (and therefore testing it) for several years.
A bit like when you go to eat at a restaurant.
If you eat well and the service is good you don't talk about it to anyone, but if you ate like crap or they treated you badly you talk about it with all your friends, colleagues and even write a negative review.
I don't live for stars and likes, but I still think that the system needs to be reviewed a bit; that's all