Squark has already given a simple answer to this (a couple of posts above this), but I'll elaborate a bit.
blackmasha, I guess you haven't looked in on this thread in a while, as
Demonkillr1 has explained this point a few times in the last few pages!
Personally, I might call them 'alternative dialogs(/texts/script)' rather than 'dialog fixes', if you take 'fix' in the most literal sense that the game is 'broken', literally unplayable, without that 'fix'.
I think DKillr1 was suggesting 'fix' in the sense of 'suggested improvement', rather than 'necessary gameplay enabler'!
So, in the literal technical sense, the offered alternative dialogs are more 'patches' than 'fixes'?
Background: a few players have noted on here that the TEXT - script, dialog/s, whatever you prefer to call the words of the game - is far from being Mr C's strong suit in this VNO (I just made up the abbreviation: Visual Novel with Options).
The most effective elements are certainly CONCEPT, PLOT/STORYLINES, and a lot of the GRAPHICS - although as with any game, the graphics are not always consistent, and a few anatomical aspects are for many readers more humor or farce than excitement. (I'm not going into any assessment here of Mr C's use and treatment FETISHES and their value, effectiveness, acceptability etc. That's been discussed quite a bit on this thread!)
So, the TEXTS. Some players - who knows how many? but it's been remarked on by several people on here! - find the texts not only grammatically poor (also spelling, punctuation, to an extent), but also idiomatically clumsy (meaning: they often don't sound like convincing or exciting English), also fairly repetitive in vocabulary, in places slapdash/sloppy, that is, the impression of being done at speed, without too much checking, and so with uncorrected "eyesores" (yes, this is true of many games/VNOs, more or less), and - more arguable - lacking the sexual heat they could have.
The CONCEPT, the PLOT/STORYLINES, much of the IMAGERY of "Corruption - the VNO", have massive potential - and maybe that's all you need to float your boat - but it's a pity if the "text track" lets all the rest of it down, falls short of the potential in the rest of the developing game.
Hence a few people have set about writing possible improvements. .... And that's what the 'dialog fixes' are about.
I think Squark mainly takes the line of setting out to correct the many basic errors in the English, . A "text repair" approach. So that players are not "hit in the eye" by so many mistakes ....!
Demonkillr1 is generally a bit more ambitious, also trying to revise, enhance and improve expression, vocabulary and idiomatic quality. Giving the gameplay (or that is the intention!) more vividness, vitality, energy, excitement.... whatever you wish to call it, up to the standard of the concept, plot/storylines and graphics.
Others are even more ambitious. ~ Maybe too ambitious ....
But anyway, .... simply regard the 'dialog fixes' (or 'alternative dialogs', or ....) as an option, to take and try, or leave.
TIP: As when applying any fix, patch, alternative file.... unless you are at your wits' end, close to abandoning because "THE GAME DON'T PLAY!!!!", always store the original files away safely somewhere, apply the fix/patch/alternate in their place, and try it out.
You can then always row back to the original if you don't like it, or it makes a problem - even if only in your view! - worse.
STAY SAFE (IRL) is a good principle also when playing games!