Thank you for Discourse, it is really nice to use.
Is it possible to create an alias username? So that @ mentioning of two (or more) names will notify only one real user? So I can use different names for official posting and private comments without messing up with multiple accounts.
Another nice feature can be a collective (group) name, e.g. @help or @support. It should notify a group of users, with an access to the conversation history and, probably, if some user from the group answered to the post with @help mentioning simply mark this notification to be read (or delete it) for other group users.