Can some one please explain, further than this post What does "too localized" really entail? why too localized mean a post needs to close. My understanding of it is that the question probably won't be answered (due to not having enough expertise/experience in it etc) which I understand but not as to why it must be closed down. Just because some thing is very narrow or appeals to a limited audience (today) doesn't make it's irrelevant and just because it isn't answered or popular today doesn't mean it can't be tomorrow.
My opinion here is based upon the definition on why to use the Too Localized vote:
"This question is unlikely to help any future visitors; it is only relevant to a small geographic area, a specific moment in time, or an extraordinarily narrow situation that is not generally applicable to the worldwide audience of the internet. For help making this question more broadly applicable, see the FAQ."
To me, this vote reads as 'the question is too hard to answer' which puts a negative connotation on the entire site and down-values the experts who willingly give their knowledge and time.
I think marking it as too localized is a good thing to let the OP know the answer is unlikely to come soon, but to not have it answered at all may not be good, unless the sites do this to 'protect its reputation'; closed votes may be better than unanswered votes (and please don't ready negativity into this question, I'm a fan of these sites and spend well over 90% of my time answering other peoples questions).
Any one willing to shed their ideas on this will be great, as always I'm happy to be wrong but do feel that this area of the site is not strong, although I certainly have no solution. May be I'm thinking too much into it, which ironically would mean as a question/discussion it's probably too localized!