I have stopped counting how many times that has happened. To me as well as to others. And yes, it is always the same moderator. I have also expressed my concerns about that a number of times (example, another one...), but nothing has happened as a result. I have even emailed the Council to ask them to comment and was told, in no unclear and, frankly, quite rude terms, to shut up and mind my own business.
Deleting posts a random moderator happens to not like or moving them to Off-Topic in bad enough but editing quoted lines is downright unacceptable.