Thanks for the kind words! The complexity of traditional wikis inspired us to build Nuclino. We definitely plan to keep the experience as smooth and simple as possible :)
Let's say a team signs up with your service and after a couple of years requirements change and they want to migrate. What are the formats that one could export the data?
Currently it is possible to export a whole workspace in the Markdown format. The downloaded .zip file contains all exported items including attachments such as images and files in a separate folder.
We are also thinking about adding HTML as an export format if there is any interest. What format would you expect as an export option?