One key question. Typical startup conundrum. How can I rely on you to keep the discussion archive alive for the long term when you're just starting out with no revenue? Are the archives easy to export and rehost?
Going forward, we're very committed to data portability. Your data is yours. We want to keep your business by regularly delighting you, rather than controlling your content. The plan is to make it possible to export your list in a couple formats, probably JSON and mbox to start. This is down the roadmap a bit, probably June or so. However, if anyone needs their archive in the meantime, they can contact me and I'll make it happen.
In the slightly longer term, I want to build a feature that automatically syncs your list archive to your dropbox, so you can search it using tools like spotlight, and easily read it offline.