There are a few ways to get in touch with the Libravatar developers:
If you have an IRC client already, you can join #libravatar on chat.freenode.net.
Otherwise, you can use this simple web interface.
Please keep in mind that you may live in a different timezone than most of the developers. So if you don't get a response, it's not because we're ignoring you, it's probably because we're sleeping
If you have a question about a particular bug, or some feedback on it, the best thing to do is to comment on that bug itself.
We use Launchpad as our bug tracker.
If you've got a proposal to discuss or prefer to write to us, you can join our developers mailing list.
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And if you need to email us: firstname.lastname@example.org