@Einer von Vielen Not sure what you mean (difference between what?).

AFAIK, background is purely wording. In another discussion, there was a bit of confusion about the term "forum" because, usually, this term refers to a bulletin board style format with several categories to sort discussion threads - whereas the Hubzilla forum style format is usually referred to as "group" or "discussion group" in social network services or the typical messengers. Mario took the opportunity to ask the community if there is interest to rename towards a more intuitive / widely used wording, or rather stick with the wording Hubzilla has been using in the past.