[I assume we are just talking about the character gen. thingy as you mentioned intertwining the story. o: ]
Ah, but it is important to take a note at what kind of information it is generating:
- 1. Generic traits that can be described in a word or so (favourite color, gender, height).
If this was for NPCs it would be convenient for small details like fav color, yet NPCs don't need that anyhow. There is virtually no difference in randomizing spontaneously of a gender and height, as opposed to having a generator giving it to you - especially when there are cases that they actually do play a role in the actual creator's planning.
- 2. A blatant numeric representation of something that is completely abstract ("satisfaction with life" as %, "satisfaction with self" as %, "competence" on a discrete numeric scale of 1-10).
Similar point can be made here as the indifference of randomization goes. But in addition, this is highly misleading to creators, especially novice ones who are in need of a good start. Characters are to be treated as characters - if one translate their personality into %s, not only does it not solve what actually matters (their past and whatnot which resulted in such), it is also counter-productive as it limits the creator into matching the actual work of the character into strict numeric limits, hence restricting an otherwisely fenceless creative freedom.
- 3. Something overshadowingly impactful that it has an unavoidable effect on the story. ("Current Mood: Lonely" <-Why? "Race: Human + Elf"
A bit of a redundant point on my part here, as this shares a lot of the previous point's arguments - so I'll inherit that here and extend onto another reasoning: A different kind of creative restriction. "Race: Human + Elf" for example - I am not against Elves and etc. as some cynics are, but I still do believe that it's best to not hinder potentially creative sights into pre-establishments. Of course, it does not physically restrict that - but when something is placed in front of you, it's often a subconscious act to follow through.
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All in all, I believe that while it certainly can help in some senses (including inspiration), its cons out-weights its pros. In the end, all it generates is an arbitrary list containing either traits that are meaningless/can be humanly randomized in the same amount of time, or values that depends on the actual work to its cause (which the creator will end up having to do anyway). In a perfect world everyone would use it and only take away the inspirations that arise, but past records have shown that the main group of users who use this device are not the ones who use it for that purpose - and that is the target of my opinion on it. c: