Pot and kettle? :)
I don't think this is the correct way to go. The Wikipedia community of editors isn't needed for input on localisation of software -- not only MediaWiki, but all products that are being translated in translatewiki.net.
To keep things simple and short, I think you should approach whoever has contributed to the sr translations here in the past. Portal:Sr will contain a partial list. You can send them an e-mail and leave a note on their talk page.