@Felthry well if you assume most people select based on preference, and 1 is too little, 5+ is too much, and 2 and 4 are ok values, than statistically 3 might be someone's preference, yet somehow no one selected that. feels like it just looks off somehow, maybe because it's an odd number.
@curls apparently the reason they chose more is that a tab is syntactically equivalent to eight spaces in haskell, a language that uses indentation for syntax, similar to python
-F