Let's face it, no one uses the 'posers & puzzles' forum.
Options for replacements:
*Green ink letters - a forum for lunatics to rant about conspiracies, guns, religion, wastes of taxpayers' money, etc etc.
*Help 2 - A supplementary help forum, for non-chess related help (e.g. 'my wife is having an affair...'
*re:cycle! - a forum about bicycles
*LGB forum - A forum to explore lesbian, gay and bi issues.
*Sweets I remember - A nostalgia forum, slanted towards sweets, chocolate bars, and other treats.
I'm sure there are others.