@HungryIm Many times I have seen a 'newbie' translator pick up a series, it has galvanized a different, more experienced translator who is upset by the mistakes into picking up the series properly (sometimes this is the series' original translator who ends up returning). Basically, the discouragement you suggest is exactly the opposite of what usually seems to happen.
I've seen this scenario play itself out 3 times recently. The end result is usually that an abandoned series gets finally finished by an experienced translator.
The reality may be that while attempts as poor as this uploader's are somewhat annoying, there actually is often a benefit for fans in the long-term.
Also, most 'newbie' translators make wildly better attempts than this and produce results that are at least pretty decent and very readable. This is obviously an outlier in terms of quality.
Given that this series that has been abandoned for years has finally sparked a discussion with 24 comments, I can't see this development as anything other than positive, even if nothing more comes of it. In that same vein, I appreciate your comment contributing to increasing recognition for this series, even if I mostly disagree with it.