4chan just doesn't need an entire article to itself, most on the relavent info has been merged here anyway.
See the milhouse arguements for an example. When it is incorperated into the imageboard article, it keeps down the meme information, most of which was useless and very PoV on what 'was a meme' or 'was not a meme'. To answer your question, Gb, the $chan article was not very useful and a pain to maintain. This might be a dumb question, but i'm a wikipedia n00b: is there any way i can access the history for the old 4chan article(s)? i still don't understand why people felt it needed to be truncated and shoved into this article.
Someone could try wikicities with a good proposal. I'm wondering if this would merit it's own wiki, listing various imageboards and their respective histories and cultures.