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.
Thank you for your proposal. However, it seems that solution from Joshua should solve the problem. I suppose you can recommend his solution if any future request of aliases.