Don't worry too much about the day-to-day fluctuation, keep the long-term trend in mind. It's possible (and I suspect that this is the case) that he is working feverishly to get the numbers up, doing so in the background or privately. If he has to work that hard just to slow the decline, that's fine- it's become clear that his Patreon is on a downward slide that he is unable to stop.
His attempts to hide, minimize, or excuse his words and actions are hurting him. It's too late anymore for him to stand up and take accountability, and as time goes on more people will become aware of the things he has said and done. I think the letters to his wife are particularly damaging, and those have not received a lot of attention. So there are more opportunities for people to learn that he's a terrible human being.