I agree with this to the extent that I will say it's the sensical answer. I think that tabs are an obvious choice because they are semantic intendation rather

I agree with this to the extent that I will say it's the sensical answer. I think that tabs are an obvious choice because they are semantic intendation rather than generic spacing. For this reason the front-end can render them with 2, 4, 8 or whatever amount of spaces, without requiring the code be changed.