Hi, IIUC the most active discussions for OSM CH are happening on the mailing list. It seems the site is down:
http://lists.openstreetmap.ch/mailman/listinfo/talk-ch
“502 Bad Gateway”
Could you please point me to the best place for asking questions?
Thanks, Oreg2.
Well best might to wait for website to come back online 
and in meantime archives are still avalaible here: https://lists.openstreetmap.ch/pipermail/talk-ch/