[askAwayMan]

If you've got a halfway decent linter, semicolons are just clutter. https://eslint.org/docs/rules/no-unexpected-multiline is the sort of thing that makes semicolon free style practical.

[Bahamut]

There is one situation where semicolons are important - when concatenating multiple script files & using IIFEs.

This subtlety is being obsoleted by ES modules & the build tooling around them, but it is a nasty bug that has sucked many an hour away from frontend devs whenever it is encountered.