We deprecated some features in Sass 2.2 that will allow us to change the variable syntax in 2.4. Legacy users are a bitch ;-) The idea of allowing any top-leve

We deprecated some features in Sass 2.2 that will allow us to change the variable syntax in 2.4. Legacy users are a bitch ;-) The idea of allowing any top-level css class be used as a mixin is a really interesting one that we could consider adding to sass. However, I would argue that you still need an abstract class syntax like the current mixin, especially where arguments are in use. As a sass framework builder, I really like that I don't have to define a presentational class name that would end up in your stylesheets just so that you can mix them into your semantic selectors. It makes it much easier to keep presentation out of markup.