My name is Augustin and I use kdenlive on Kubuntu :)
I am also a Drupal developer, so I know Drupal very well. I developed many modules for Drupal.
I would like to post a follow up to the following thread:
I definitely think that for the good of the kdenlive project, the whole web site should be fully integrated. Users are more likely to contribute something if they don't have to use different logins for each part of the site. So this site should definitely use the Drupal bug tracker to replace Mantis. It might be a bit of work to do so at the beginning, but the long term benefits are worth it. We don't need to import all mantis bugs into the new bug tracker. The Mantis bug tracker can be cleaned little by little, as bugs are actually fixed and duplicates created in the new Drupal bug tracker.
Also, this web site should definitely have a wiki (a simple node type called 'wiki' should be enough to start with), to encourage users to improve on each other's tutorials. The tutorials themselves and the user manual should be like a wiki, editable by every (trusted) member.
Finally, I am not particularly fond of forums. Too much information is lost in active forums... but that's something I'd like to discuss later, after the rest of the web site is properly integrated.