Spaces define by themselves the spacing convention unambiguously, whereas tabs is environment dependent and need other tools like editorconfig to guarantee consistency
I like four character width indentation. Linus prefers eight. With tabs VIM shows me what I like and shows Linus what he likes.
As an interesting note, I now work with the second hard-of-sight developer that I've worked with in my life. They both use normal Jetbrains IDEs, with font sizes and interfaces made huge. Neither of them has ever said a word about my line length. Nor my function length. Nor my long variable and method names. Nor my explicit comments, nor my detailed git commit messages, nor my frequent git commiting, nor my branching preferences, nor my README files, nor my obsessive security practices such as validating types and character length limits on input fields and sanitizing and filtering input and my rejecting of any PR with concatenated outside-data in SQL (even if that outside-data came from the DB itself, for a recent example), and all the other idiosyncrasies that one dev suffers from another.
Line length? Not a problem. Forcing the hard-of-sight dev to indent however _I_ see fit? I wouldn't dream of doing that.
Thing is that with spaces you can also predict consistently the line length and not have code being clipped on someone's screen that set tabs for 8 spaces for some reason.
In any case, I like spaces but I am impartial to either one. You seem like you have very strong opinions about the matter so I won't push the subject further.
> Thing is that with spaces you can also predict consistently the line length and not
> have code being clipped on someone's screen that set tabs for 8 spaces for some reason.
But I'm also the crazy person who uses an 8 wide indent anyway