I believe there will be no harm if Drupal community learns about an interesting discussion on Acquia's business practices going on currently in Wordpress community, namely on the personal blog of their project lead. Matt for Wordpress community is like Dries for us:
http://ma.tt/2013/03/the-redhat-of-drupal
Personally I think it's just ok for Acquia staff-member to approach anyone with that kind of advertisement. It is just little awkward when another world-wide popular CMS' lead is targeted and invited to switch to Drupal :)
What worse is not Acquia's methods of expanding, but Acquia's blocking its competitors from getting listed on http://drupal.org/hosting. We (http://drupion.com) have applied numerous times and we meet all their requirements, however they keep asking for evidences of our contributions to the community and declining our requests. The Association never could present the evidences of what kind of great contributions to the community have been made by some of the following companies, which somehow got listed in "Other great hosts" section: 2020Media, CiviHosting, Cruiskeen, EchoDitto, Egressive Limited, Holistic Solutions' HotDrupal.com, Koumbit.org, Promet Solutions.