One fine line that the community will need to tread is that it needs to attract enough people with aligned interests to socialise the costs of paying people to do the sysadmin work (or find enough sufficiently-motivated volunteers to do so, and develop procedures allowing these people to hand over properly when they lose interest), but remain small enough to "know everyone" involved.

As a participant in a number of small, mostly-volunteer tech community groups, I think this might be a difficult endeavour.