I pretty much prefer the parentheses for the sake of consistency (refering to the ``method`` directive). It's not that I insist on that if you don't agree but I'd really love to get this as consistent as possible throughout the docs. We don't have to enforce this in our standards. That would be too much as it adds unnecessary burdens for beginners. I'd suggest to use them as much as possible to give people a clue about best practices (such as what we've done recently with the component names).