It has been a very long time since they are doing it silently continuously. BurungHantu hinted on it on his PTIO blog, where he did revelations on PrivacyGuides crimes, IIRC.

P.S. since you are the OP, I will tell you I know werwolf personally and he was complaining in our personal group chat, of PrivacyGuides fans misusing this article to make themselves more credible.