After reading the article in Engage about Seti and checking BoincStats to verify the article's reported number of users, I and others noticed that between April 21, 2017 and April 22, 2017 there was a large drop in the number of users in the BoincCombined statistics and the Seti and some other projects (but not all of them). Some thought in might be the projects purging of invalid teams where the founder had no credit (i.e. spammers), but this would not explain the drop in Boinc users at the same time (because the percentage of drop was not the same). Do you have any possible explanation for the anomaly?