While a separator for strings of digits that are numbers would be useful as 1_212_312_312 is more readable as a number than 1212312312THAVE two other objections
1) The ` character is pretty much invisible and almost identical to ' depending on your font
2) Interleaving```mary```text```had```you```a```should```little```not```lamb```read```it's```makes```fleece```reading```was```the```white```text```as```much```snow```more```and```difficult
It is almost as if you wanted to introduce a syntax change to make creating bugs easier :)
