The activity of the Chapter and the User Groups should flow to forward the movement.
Chapter is not democratically elected by the Community. It is a subset of the Community, recognised by WMF. There is a large Community member pool who are not Chapter members, whose membership stands between 130-150 people at last count. The Chapter has to consider why this continues to be the case after 4 years of its existence.
User Groups are a group of people who also similarly get affiliation from WMF and hence has a standing equivalent to the Indian Chapter in India. Here - http://meta.m.wikimedia.org/wiki/Wikimedia_user_groups
My original email is only for Wikimedians in India to not consider the Chapter as an eternal entity based on a mandate given to it in 2010.
SIGs can be formed only by members of the Chapter and not outside it. Till Vishwa's email today, the Chapter has been unwilling to support creation of User Groups stating that SIGs can perform the same role. My clarification in this case is only that this forces a Wikimedian to become a Chapter member.