Sorry, sent this too quickly. Wikispore uses Cloud Services which means ugly domain names (I'm not sure whether that can be worked around and how hard it would be) and a less stable hosting environment compared to most professional hosts, OTOH easy to collaborate and get support. We use MediaWiki-Vagrant for bringing up the wikis, which is really a development tool, and as such fragile and not really secure, but can build complex setups (visual editing, cross-wiki notifications etc) with very little effort.