Is there a meaningful difference between linebreaks and other whitespace if you have no comments? I understand that it might constitute a breaking change now t

Is there a meaningful difference between linebreaks and other whitespace if you have no comments? I understand that it might constitute a breaking change now to delimit the comments since: # HOCON is great you can have #comments! would now be a compile error but I'm interested if there's another issue that prevented optionally delimited comments in the original spec.