RE: [EN] Posting (or double-posting) in multiple languages? Read this!/[ES] ¿Publicar (o publicar doble) en varios idiomas? ¡Lee esto!
Totally agree with you, especially if you have a lot of autovotes it is very easy to double dip or even multiple dip the rewards pool.
Some will argue that translating to a different language involves work and people should be rewarded for that. Fair comment, but translating your own work to another language requires less effort as you know the article already and you're not creating the content again or not having to read and understand the post like when you're translating somebody else's post as often happens.