It is as easy as waving a wand 😛
This post is not about the commenting etiquette, rather it is about the technical issue of posting a comment.
WordPress.com blogs are great! You just log into your account and comment on as many blogs as you want 🙂 Also you can easily see responses to your comments, but that is another issue altogether (Enable response email notifier on your blog if you have not done so already, people!)
When you visit other blogs, you have to sign into every one of them with your name, email, and URL. If you comment often on many different blogs, things can get quite frustrating, especially if you don’t have uber typing skills.
However, there is a solution.
All you have to do is stroke it and things will materialize! 🙂
File > New Command > Keys – Send Keystrokes
Your Name[TAB]Your Email[TAB]Your URL
And set the motion to whatever is easiest for you. For example, you can set it up for a simple Up gesture 🙂
An alternative is this hot thingy 🙂