My main concern is that I don't see why one should be ethically obliged to put further beings (with lives worth living) into existence, meaning I don't see why existence would have intrinsic value. Happiness certainly is good for the happy being, but does that mean it's good impersonally too, compared to non-existence? There's no meaningful way to make the comparison, so bringing beings into existence imo should be seen as something neutral (intrinsically at least, practically there are also resource considerations and so on), IF it's a life worth living. Saying that non-existence is worse than a happy life would be an error of perspective, ALREADY thinking as if the happy being existed, wanting to live on happily.
If there are existing beings that suffer considerably now and then, but overall live a life just about worth living, how can the ethical obligation to create new beings with positive utility be equal to the obligation to ease the suffering of the already existing beings? Here we have a conflict, and even if there's something positive to be said about having trillions of blissed out beings in the world, I think the ethical imperative to end existing(!) suffering still trumps any obligation towards extra beings. Suffering definitely is bad when it exists, with happiness, the matter is much less clear (regarding impersonal 'goodness'). I think it also makes it easier to justify this view in meta-ethics, appealing to suffering as an intrinsic state of 'avoid this!' for all sentient beings.
You all are probably familiar with the Repugnant Conclusion, is there an answer to it that keeps total utilitarianism intact? http://en.wikipedia.org/wiki/Repugnant_conclusion
I'm not advocating average utilitarianism, there's a third option: prior-existence utilitarianism. I'm not sure, but it seems to me that this view only works if one values suffering (lack of it!) more than happiness, or else it would implicitly lead to total utilitarianism again. But one doesn't have to be a strict negative utilitarian (even going as far as the Pinprick Argument) in order to accept this view.
So what are your thoughts? I'm bringing this up mainly because, unlike the distinction preference vs hedonic utilitarianism, the total vs prior-existence distinction DOES have significant practical implications for a project such as the felicifia wiki. I for instance don't think that the question whether wild animals live lives worth living is very important, and if anything, we should reduce their numbers instead of creating more of them (or, as Pearce suggests, abolish their suffering).
And another question having to do with this, how should the felicifia wiki deal with such theoretical disagreements?
Edit: Just saw the following thread, I'll read it now and keep it in mind for my further posts here. Notice the difference between 'prior-existence' and 'average' though. viewtopic.php?f=7&t=28