The Apache POI Project operates on a meritocracy: the more you do, the more responsibility you will obtain. This page lists all of the people who have gone the extra mile and are Committers. If you would like to get involved, the first step is to join the mailing lists.
We ask that you please do not send us emails privately asking for support. We are non-paid volunteers who help out with the project and we do not necessarily have the time or energy to help people on an individual basis. The mailing lists have many individuals who will help answer detailed requests for help. The benefit of using mailing lists over private communication is that they are a shared resource where others can also learn from common questions.
POI Developers count on feedback from the mailing lists. Many developers do take an active role on the lists.