Mark Williamson said:
Also there is the problem of lack of timelessness.
In 500 years, will people care about [[w:en:Daigo Fukuryu Maru]]? Perhaps. What about [[w:en:Manchester United]]? If football doesn't last that long, chances are the 500-years-from-now-Wikipedians would want to merge all football teams into an article "List of famous football teams" or something like that.
What about [[w:en:Britney Spears]], [[w:en:David Beckham]], or [[w:en:Stefanie Sun]]?
This is all to the good. We *need* to give deletionists something to look forward to. The timelessness problem will be solved because Wikipedia is not a timeless publication, but an organically growing one. Seriously, though, if any twentieth century works of literature or film are studied in 500 years, someone will have to compile notes for the students so they'll know what Bridget Jones (or Harry Potter, or Homer Simpson) is talking about. There are academics who spend their entire working lives studying 80 million year old coproliths, so Bridget Jones' Big Knickers could well be on some future academic's literary excavation list.