I agree with DanaLynn 100%. Much more eloquent than when I tried to explain it.
Reading other fashion blogs heightens the sense of uniformity I see on YLF, and other fashion outlets as well. For example, whenever Angie posts about a new trend, the comments are initially usually quite negative or ambivalent. People just seem more reluctant to embrace something new. But on a more fashion forward outlet, you'll find a lot less resistance and even see a few comments from people who have already experimented with the trend in question. There is also a lot of "I already did that once, never again" on YLF, which is something I don't typically see elsewhere. Again, I think that has to do with the overall age group that YLF seems to attract. That is also why I think age appropriateness gets emphasized here more than it does on other blogs or websites I see.
Obviously there is a wide audience here, but some forces are definitely more dominant than others. I'd describe YLF as skewing very classic, for women aged 30-60, often moms-on-the-go, more modest than average, budget conscious but not "cheap," focused on personal style rather than fashion, very practical, and very open in terms of body type. By "open" I mean YLF tends to be a lot less strict when it comes to rules about body type. I am fully aware of the fact that a lot of the things I wear would not get approval from the larger fashion community, but in the end it's all about prioritizing. You can't please everyone, so you have to make a decision about whose opinion you value most. Even within YLF, there are certain members whose input gets weighted for me.
That isn't to say that people who don't fall into any of the above categories aren't welcomed here, but I think it's impossible for any blog to truly cater to everyone, everywhere with a completely even hand. It just isn't. Even if that is what you intend, you will just naturally attract a certain type of audience and that's ok--it's good, actually. A blog that's all over the place and has no focus would not appeal to me. I'd much rather read a focused blog that might not always be catered towards me than one that just has no direction at all.
To Dana's point, I can't imagine too many people from YLF being photographed by Scott Schuman (the Sartorialist). Both places just have a very different flavor. I can't possibly see why any of this would be a bad thing though.