I think Pootle is a great project with a (much) longer history than traduora and it's very rich in terms of editing features.

While traduora will have a lot of commonly used editing features, I'd like the focus to be on enabling small and medium teams to easily translate their projects without much overhead. That's where upcoming features like automatic translations come in handy as they provide a good "starting point" for a lot of cases or also for example the ability to deliver translations over the air to your apps/websites.

I'm convinced that in open sourcing traduora, it’s an effective way to make the best product possible, while growing a community and giving developers confidence to build on top of it as a platform.