It would be handy if one could have a conduit api to interface with the PhabricatorBot. Some times is just handy to make the bot say global information. Should be pretty easy to implement.
I don't think this is especially easy to implement: we don't have any push channel to the bot right now, and the pull channels are implementation dependent. We could build a specific channel just for this use case, but I'd like to have some other justifications for it before we do, since it would be a lot of code just to save you from logging into IRC.
Another possible approach on this is just using the feed notification handler plus custom feed events, once those work better.