...would be very nice.

I imagine for example extending the approach of the .(JavaScript must be enabled to view this email address) bot to let me interact with any .(JavaScript must be enabled to view this email address) using commands. I could provide my credentials to any number of users (for any number of accounts), and would receive updates from each account through the respective XMPP user.

That’s doable, but how would you now which account to use for direct messages ?

Hm, I didn’t think of that. I guess you could have the user set a default account, but it’s not perfect.

I’m not even using direct messages, who needs them? ;)