I'm pretty sure I disclaimed that near the end of my message. Anyways, that's a problem with any auto translator out there. Every single one of them will have grammatical errors & incorrect word usage.
If Cube implements one, they'd have to base it off of an existing translator, meaning that there's going to be grammatical errors regardless, resulting in confusing translations.
A possibility to go about this is to have community translating, but that's messy & it may not reach most threads (especially if it's from English to another language).