Kamamura: On GOG, I have posted unfavorable review for Homeworld Emergence right now.
For reference, the "unfavorable review" is (in its entirety):
If I find solutions for the problems below, I will update my review.
NO WIDESCREEN SUPPORT - game runs ony on several predetermined resolutions, 640x480, 800x600, 1024x768, 1280x1024, 1600x1200. That means that on the most common gaming resolution, 1920x1080, you will have to run the game in a centered, non-scaled rather small box. That's very strange since the original Homeworld could be switched into any resolution via a simple command line parameter
TEXTURE FILTRATION DOES NOT WORK - no matter what renderer you select, textures are not filtered and will appear "pixelized" like on old software rendered games. Pretty ugly.
Kamamura: Edit: I can see my review now, but I cannot edit it. Why can't I update my review?
To answer your question: allowing unrestricted editing of reviews at any time opens a whole new can of worms. Not the least of which would be trolling by for example posting a good review, waiting for it to get to the top page, then changing it to the exact opposite of what it initially was.
Not saying the current system is perfect, since you can't edit a review for an obsolete version for example, however simply allowing anyone to edit their reviews anytime won't fix it. It needs a complete overhaul that at the very least allows you to sort by date so you can see what review was written when. However at its current state, given a choice between "never edit" and "edit anytime" I'd choose the former.
And for the future here is a tip to anyone writing reviews: when you write a review,
write a review.
In the meantime, if you absolutely must change yours, contact support. They can edit it.