I don't often watch movies at 200% zoom. But if I did, I would find many artifacts in this movie, one of which is some faint vertical lines in some scenes. In actuality the lines are FAR less obvious that this reviewer is depicting, and are only seen in some scenes and ONLY when zooming. Like I said, there are MANY PQ issues, this is just one of them. Randomly selecting scenes shows these lines in about 1/3 of them. I can think of several different types of video processing that would magnify the lines, but on my ISF calibrated display they are very faint. There is so much garbage on this film print, these lines fail to rise to the level of "objectionable". More of a curiosity and if you're not looking for it you probably will never notice it.
Not that it matters, since this is the only scan of this film we are likely to ever see, not to mention it's the one and only print ever released on video. If artifacts prevent you from enjoying an amazing little film, then don't watch it. This movie was unreleased on video for 25 years, and I'm glad to have it.