Thanks for the update, Thomas - glad to hear 39C3 went well.
I could not have made Hamburg this time from the UK, but the recordings sound useful and I may take a look at some of them.
I would definitely remain interested in any future Discourse operator/supporter meetup in Europe, or an online hangout if that is easier to organise.
Even a small informal session for self-hosted and community-run Discourse operators would be useful.