I agree with you, the module needs improvements on that point.
It's a really old point I missed when we decided to reuse and to reverse that module.
I think about two manners in order to solve it :
* implement a return code for purple_send_message
* sending a reply directly in the module
Regarding the design of the module, I think both possibilities needs a lot of mod.
I'm not sure how to consider that mod as it's not a bug but a limitation.
Is it a new feature I'll code when the trunk will be unfreezed ?
If yes, we may add that limitation in the doc for now.
Eric.