Operion is a type of shared environment, where all users are running off of the same software. This is great because it allows us at Automatic to update hundreds of website at the same time with a single click. It means we can fix bugs or offer new features very quickly, which is a win for you as users. Having all users running on the same software can also be dangerous. If we aren’t careful, one user has the potential to take down the entire site. So this is why we need to limit some of the things you post on your blog.
If you wrote some code or pasted it in from another web site and then it disappeared after publishing the post, the code is likely being stripped out. If you feel it’s being stripped out improperly or if you would like to suggest additional types of code we should allow, please contact support.
-- From Jim