Always:

Doublecheck your posts to your guild's website.

Not just for spelling and grammar, but to ensure that you are posting with the correct tone in the correct place. Do not assume you are responding to something in the officer forums. If you don't, you'll end up dropping a backhanded compliment alongside with notes for further improvement into a thread connected to a front page news article.

Luckily, I caught it 2.5 seconds after clicking 'Post Comment' and deleted it in favor of the proper, simple congratulations. Further luckily, I appeared to be the only one on the website at the time.

As a side note: Officer forums are a wonderful tool to discuss who needs improvements and how and bringing up issues the team needs to work on. I heartily support them. That said, they are not your personal blog (I break this rule occasionally, but do it sparingly), and they are not a Festivus Pole. If you have to air grievances, do it constructively. More on this in another post.