There was a big thread about this a while back, here’s an example from there that shows one example of the sort of code that can be difficult to visually parse for some developers:
Basically, without braces acting as punctuation, it’s very easy to lose track of what level of indentation something is at, particularly when there’s stuff between it and the reference line that opens the block. At least for me, it’s a visual processing thing, and doesn’t appear to be something that I can brute-force my way through (kind of like if a programming language mandated that the background be red and identifiers green).