There seems to be a misunderstanding. I'm not involved in any way with the development, so please take those compliments back. :)
Anyway, like I said before, allowing the change of default chat app is not trivial. The eog example you gave is just a matter of choosing which app opens a file. The Me Menu involves much more complex functionality and communication. Even if it the developers decide to do it, it won't be for 10.10.
So, in my opinion, while it's nice to think about the ideal scenario, the focus of this bug report should be on what is a good solution in the short term. And I'm not sure that alienating Pidgin users from using the Me Menu (something that will happen depending on the solution adopted to fix the bug) is a good idea.