Is there a place where i could post a wish for a new module?
http://groups.drupal.org/contributed-module-ideas might do, although it's primarily for developers to post ideas they're going to implement themselves.
Also, 'Paid services' forum. :)
Modules are written by people who need them (or are payed to do so).
This means that wishlists generally don't have much of a point.
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