Zhey Qvaak, there is really nothing wrong with doing that. When they did this on the Na'vi forums, the users quickly determined that the initial rules were not the optimal rules and adapted. There was a little fuss, but everyone eventually got over with it. I expect this thread to adapt in a similar manner. Although I tried to borrow the best ideas from the Na'vi conversation thread, there's always a chance it isn't perfect. If we can get the 'desc' BBcode tag working, it will be possible to do what you describe, and see a translation by just hovering your mouse pointer over the word.
Another interesting feature now on the Na'vi forums is the ability to easily put an audio recording of what you said in the message. Considering that Dothraki is a spoken language, this would be a good future addition here, as well. The media framework we need to do it is already here, but is sldom used.