[bsclifton]

This would be extremely cool - and we (at Brave) did put in work to get a solution working (huge kudos to Jocelyn Liu who did the work). Repo up at https://github.com/brave/go-translate

However, the problem comes to licensing costs :( Setting aside the privacy implications of sending content on a site (since you opt-in), the content needs to be fed to a service. Microsoft and Google charge a per-transaction fee on each of these service calls and it can end up being quite expensive