Here are a couple of mock-ups that I’ve made to illustrate how Gwibber and Empathy should evolve with similar interfaces, especially in the account windows.
Current state of Gwibber (top) and Empathy (bottom)
After making a few adjustments to make the Gwibber accounts window more similar to Empathy’s accounts window, this is what I came up with. I also moved the help button to the right to make it feel more appropriately place (to me).
Mock-up of Gwibber (top) and Empathy (bottom) with Gwibber's accounts window modified.
Ideally, I think the two should merge their windows when both are installed simultaneously. They could be separated via tabs, but contained in a similar window, thus making settings in Linux a tad bit easily to navigate through.
A mock-up of Gwibber and Empathy accounts merged into one using tabs to separate.
If they do plan to implement a better interface for social and messaging accounts, this would be an example that I think would be highly effect and reduce the need for so many preference menu items at the same time.