As I've already mentioned to you, the words 'not supported' relate to the operating systems that NE users have Zimbra installed on. If it's not on the supported operating system list we do not provide support for that. Part of the licence for installing NE is that it's installed on one of the operating systems we have verified it will run on. We can't provide support for every version of Linux in the market, not practical and not feasible.
Users are quite entitled to install Zimbra on any platform they desire, they should be aware that it's an untested platform and may or may not work.
We are quite willing to accept help form forum members to implement features, code contributions, enhancements and installations on other operating systems. The forums are for discussion of these features/enhancements and
bugzilla is the correct place for users to file RFE (Request For Enhancement). There must be some understanding on your part that not every feature requested will be implemented, that's the nature of software development.
We wouldn't have been able to progress the use of the product and it's features without the vibrant community here and we do listen to the Community.
BTW, don't forget that employees posting and helping on these forums do so in their spare time (if they ever get any in their busy schedules) and to help the community.