Seems like GOG is kind of a mess with games uncensored and others censored and others apparently uncensored but with content cut. It seems to have to do with publisher's decisions and GOG's policies at the time the game was published, because Huniepop and Kirakira are some of the earliest adult games to get there and there was probably not much support for adult content yet. GOG seems to be following Steam steps, including the mistakes. Thankfully it seems all games can be uncesored, and all games with "unrated" patches are uncensored. If you think they are censored because of the mosaic, you must accept that's the publisher's fault, not gog, and there's no fully uncensored version in those cases, because they just didn't demosaic the original japanese version.
Hi, just added you (did not realized that you meant GOG and could not find any option to add afriend on itch :D)
At least thea re korrekt with the Kirakira series. I downloaded the patches and opened them directly with an asset viewer. Still censored ...
But yes, such databases usually are made by the community so it is not that untypical that at least some information is wrong. That is why I think that forums are such a good thing. Here you can ask actual owners of these games if they are censored or not.
I mean all older VNs had uncensored version in more adult friendly sites. It was the way it was when adults games came to Steam. We had to rely on patches on Steam all the time. I believe you that game and huniepop are censored in GOG, just like they are on Steam, but that's the way it was back then, and we always had to rely on patches, while adult friendly platforms didn't need patches.
Nowadays GOG is much more open to adult content though it depends on publishers and their relation with GOG whether the game will have the patch as dlc or uncensored in the base game.
The boss of Kagura Games told me some about that and the FAKKU issue. Hey add me to friends.