Why using underscores is discouraged in Julia?

Question

It is said in julia manual that 'Word separation can be indicated by underscores ('_'), but use of underscores is discouraged unless the name would be hard to read otherwise'.

I wonder why.

Answer 1

We're often bound by the personal preferences of those who write the tools we use.

Standardisation is a good thing, even if we may not agree with specific standards.