Hi there,
because of the mob of pissy deletionists who dominate VfD
So I take it you are a pissy inclusionist then? :)
In all seriousness though it is a difficult issue. I think the more recent controversial ones like Stardestroyer.net (its 3rd VfD which finally resulted in its demise) and trekbbs one or whatever highlight this.
VfD itself is an interesting mentality that is really easy to get sucked into. Even though are many fairly notable websites that get canned because they fall just short of WB:WEB for example, many other articles that don't meet it get kept for other reasons, such as because they are entertaining (GNAA, List of Ethnic Stereotypes etc. etc.).
The system does work in a sense though. For example, a couple a put up there that were of somewhat non-notable websites, but were written very well, got deleted rather soundly with a surprising turnout given the subject matter (and some funny but demeaning jokes from the voters).
Of course, I say it works in the sense that you're making a strict encyclopedia, which tends to go against the wikiway (I mean the C2 wikiway not the wikipedia wikiway :)). In fact when I first came to WP a long time ago I thought that was the way it worked... and was surprised to see VfD and other venues to removing content.
I myself got sucked into it earlier on (admittedly its quite fun and a great way to inflate your edit count), plus there are a lot of old-timers there (who probably are deletionists themselves ;)). Lately, I've been realizing that there needs to be more inclusionists voting there (although some self-described inclusionists seem to vote delete on everything anyway...).
Maybe it gets back to the old argument that you need people who are really familiar with the subject to judge it. Who knows...