There is a hot new feature in transifex.net, which is the ability to review (proofread) strings. That's a new translator role.
The transifex-client v.0.7 includes that. See[1]. The idea is to change all Makefiles (pullpos) and the syncstatic script in order to pull only proofread strings. We need to add the "--mode reviewed" option to the "tx pull" command.[2] But we need first to update to the new release of tx (which is not packaged yet, I'll ping the maintainer).
Because all current translations should be marked as reviewed, I propose this change to happen during stg, which should be around the Tue 2012-04-10.
[1] http://help.transifex.net/features/client/index.html#user-client-07-whats-new
[2] http://help.transifex.net/features/client/index.html#defining-the-mode-of-the-translated-file
actually we can review strings only through the online translation tool (Lotte), but could mark all stings on the current page as reviewed. There is no way to do it faster. Could come later.
Waiting one indifex ticket to be resolved. https://bitbucket.org/indifex/transifex/issue/45/proofreading-should-be-managed-by-the-team
I'm going to close this, because we have the possibility to do this, but many teams are rather small and don't have reviewed strings.
It's still a nice to have, let's also wait what will come with Zanata (F22).