The gist of Musk's complaint seems to be extreme cherrypicking by Media Matters. In his words:
"Of the 5.5 billion ad impressions on X that day, less than 50 total ad impressions were served against all of the organic content featured in the Media Matters article. For one brand showcased in the article, one of its ads ran adjacent to a post 2 times and that ad was seen in that setting by only two users, one of which was the author of the Media Matters article."
The gist of Musk's complaint seems to be extreme cherrypicking by Media Matters. In his words:
"Of the 5.5 billion ad impressions on X that day, less than 50 total ad impressions were served against all of the organic content featured in the Media Matters article. For one brand showcased in the article, one of its ads ran adjacent to a post 2 times and that ad was seen in that setting by only two users, one of which was the author of the Media Matters article."