The plot shows the graph of the number of new users in the Mastodon platform as a function of the date for the last months. It can be seen that until Musk's purchase was completed, the daily new users were about one thousand. It jumped to twenty-five thousand during the first migration to Mastodon, just after the Musk's purchase of Twitter was completed on October 27. A second jump to 100k new users per day happened in the second wave, just after the massive layoffs in Twitter on Nov 4th. Finally the third jump to almost 150k per day happened after Musk's Twitter 2.0 ultimatum on Nov 17th.
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