Any pre-configured solution - such as a Dating Solution - would be just a starting point - with a lot of the configuration done to support the use case, as Andrew Boon suggests in the case of a dating solution it would be focussed on setting up Permissions, levels, search forms and profiles. Essentially a lot of the early considerations would have already been done.
Anyone who launched as site based up this solution would not be restricted to this - being a full UNA platform they could continue to develop, change design, edit search forms, menus add or subtract modules etc.
Baloo - I think we will add save search to next update - Alex T⚜️ will confirm. :)