It won't sustain.
Probably won't. For every newbie who fell for this, there will be a few long-time patrons who were there for his 380 Patron goal that made grandiose promises of "travelling to diverse locations" to film videos and documentaries, organise meetups and promotional events and a TED Talk. None of which he has done last year, even when he had more than 500, 600, 700 Patrons. I would think those people who actually thought they were getting something permanent at 380 are feeling a bit betrayed as he's threatening to scale the channel back even at 30 over that benchmark.
Still, it must be a nice feeling that even when he's short of cash and a week away from payday, all it takes are a series of tweets that all but threaten to ditch the channel altogether to get several hundred dollars' worth of tax-free PayPal infusions.
Even after showing absolutely no remorse for taking a sex holiday on the donors' money, he's still able to summon up some quick cash for doing absolutely nothing more than being a greedy little prick.