I was trying to figure how this discrepancy occurred as it seems impossible for a copy and paste to include those words. I believe he is not using the PC to copy and paste as we do. I think he is actually typing out the words from one PC to another. This is usually done to avoid tracking. The word "part" appears on the sentence below. He must truly believed that he is been monitored.
Here's a screenshot from:
facebook.com/1901090283464405
(click the arrow at the top right-hand corner of the post, followed by clicking "More options", and finally clicking "View edit history"), proving that LHY edited his post: