[pwdisswordfish5]

Zero- versus one-based indexing actually matters somewhat for correctness. The real trivial ‘small syntactic technical’ bikeshedding is braces versus indentation (and: which kind of indentation) or semicolons versus no semicolons.

[marcosdumay]

Semicolons vs. end of line (like in Python) has a significant difference on what kinds of things you can express. End of line based syntax strongly discorages long lines, what brings problems and benefits. (And the Javascript choice is simply wrong.)

Semicolons vs. indentation structure (like in Haskell) has a huge usability difference in interactive shell. It's trivial on editor code.

The dismissal of syntax as trivial is not a good line of thinking. Syntax tends to have surprising impacts on semantics.