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.