Mollom and Acquia?
Mollom is a self-funded project. We take it very seriously, but it is nowhere near the size or scope of Acquia, which remains Dries's full-time commitment.
Mollom is a separate effort for three reasons: (i) it was initiated before Acquia, (ii) it is a collaboration with Benjamin Schrauwen who is not involved with Drupal or Acquia and (iii) unlike Acquia, Mollom is reaching out to as many content management systems and web applications as we can engage (and not just Drupal).
While Mollom is not associated corporately with Acquia, Acquia is a Mollom reseller partner, and offers Mollom services as part of its subscription offerings. If you are a Drupal user, and you need rapid response times or telephone-based support for Mollom, you may wish to arrange your Mollom Plus subscription through Acquia.