This is an example of a hashbuster. When a spam message is identified and filtered out, the spammers insert this gibberish as a way to make the message look different from the one previously identified. Special algorithms write the words so spam filters are fooled into believing it’s a new unique message. This is just a snapshot in the escalating arms race between the spammers and the email recipients. Most people are hoping the spammers will be vanquished.