When Registering and asked to type in a verification code ~ Do not type the first two or the last two characters.
In the example below, we have highlighted what you should type. This simple trick eliminates Spam Bots.
|An Error Has Occurred!|
300 An Error Has Occurred!: Unable to open ### ThreadID: 1171688094, LastModified: Sun, 01 Feb 2015 11:22:24 +0000 ###.txt