Here is a list of Hoster for MoinMo.in instances
  https://moinmo.in/MoinMoinHosting
some entries seem to be outdated, there are only two hosters offering
a pre-installed MoinMoin and pricing starts at 180 USD/year.

Other lists of wiki hosters can be found here:
* https://en.wikipedia.org/wiki/Comparison_of_wiki_hosting_services
* https://www.mediawiki.org/wiki/Hosting_services

Given that our wiki requirements for roundup are low and
most of us want to spend less time administrating the wiki and more
into roundup development, my tendency right now is to move to SF's service.
SF runs Allura, which is a Free Software product, we maybe able to
become more of a customer if we volunteeringly pay.