This works in theory. I've yet to see a project accomplish it in practice. There's always someone with an incorrect editor config that does indentation and alig

This works in theory. I've yet to see a project accomplish it in practice. There's always someone with an incorrect editor config that does indentation and alignment with tabs (because it's easier to configure your editor to just send a <TAB> than to have smart behavior, or copy-pasted code contains a tab rather than spaces, or a million other reasons), and nobody notices until two years later and everything is a mess for anyone trying to use a custom tab-depth.