I assume it got deleted because it's against the rules to comment in these threads before the episode has started.
But yes, they cause a lot of trouble. The episode 5 thread got incredibly derailed by a discussion about a conversation about "Ash losing because he was unprepared and overconfident", which didn't actually exist in the episode and was entirely fabricated by this "translator".
They're horribly off mark, and they are going to ruin discussion on episodes if people talk about dialogue from them as actual dialogue that happened in the episode, since it'll just lead to endless corrections and clarifications from those people who actually understood the dialogue. We want to let people know not to trust them and not use them as an information source.