I have seen a number of new/Handshake accts. that are less than an hour old but have pages of comments/Posts. They are attempting to lose their new status quickly so that they blend in better. They work for places like Media Matters, Act Blue and so forth and are paid per reply so rather than replying just click Deport which is next to the Reply in their post.

Here is some useful Info:

Look to the right of their username and if there is an icon that indicates a new/Handshake account. Click on the username to see both history and on the right side of screen you will see how old their account is.