Why not automate this and remove the human factor? Google probably has an API for Translate.
What I do think can be automated though, is the act of finding search phrase equivalents for different languages.
And if you have some humour or poetic fomulations in your description, it probably wont give you a very good result.
Then you've got all sorts of idiomatic expressions. It's often not as simple as plugging into Google. I've been working on iOS language apps for a few years. They are localized in a dozen languages. It's a lot of work. For example:
https://itunes.apple.com/us/app/h4-spanish-lite/id388918463?...
Is there any interest in maintaining an open source list of common words and expressions? GitHub? Google Spreadsheet? I could seed it with some of my data. I already have some common words for a dozen languages here:
https://docs.google.com/spreadsheet/ccc?key=0ArVkFagUZg7bdHB...
If anyone would like to contribute, let me know.
There is also lots of other small details on how people are going to use your app. For example in some countries, the last name is supposed to be put before the first name and if you put it the other way around, you would still have ~15/20% of people which would put their last name on the first field anyway regardless how it's labeled.
I can only speak for myself, but there is a special place in hell for any and every one who butchers my native language into an indecipherable mess and have the guts to serve it back to me.
If you want a hint of what Google Translate does to a language, do it full circle. Translate a text from English to for example French, and then input the result for translation back to English. The resulting experience is pretty close to what the French user would get.
(It also doubles as comedy.)