This simple language construct reflects an interesting way of looking at things.
Instead of immediately judging, it leaves open the possibility that your opinion might change.
It is not the subject that is lacking, it is your understanding of the subject.
- “I don‘t like this song” say “I don‘t understand this song yet”.
- “This code is crap” say “I don‘t understand the intention behind this code yet”.
- “X is bad” say “I don't understand X yet”.
Just a big tiny difference.