Ok so I went ono the Vinesuace forums to find out if Joel is doing anything.
Basically this all started from another site, but before that here's something interesting about this towel guy.
This guy actually takes his time on doing this stuff, this guy picks his victims through tumblr, this starfish stumbled upon Joel's tumblr and decide to ruin someone or should I say many people's day, once he does he stalks the crap out of the person he's attacking, finds phone numbers, private info like family member names and dates of birth and other private stuff like that he starts his plan of douchebagery.
All he does is just abuses the reset password feature google and many other sites use, you can protect yourself from this by setting up two step authentication and not putting your private information on the internet, even if it isn't that private.
Then he checks if they have a twitter account, he follows it, why? He wants to see their fan base rage and get upset or see his victim panic.
Joel is being the winner here, he actually still has backups of his channel and is choosing to not give this guy attention, if you didn't noticed joel is not being active on twitter anymore, and that's because this douchebag is watching his twitter waiting for attention.
I'll say the same thing that Vinny and other streamers said on their forums:
Please do not give this guy any attention, that's what he wants, we have everything under control, it will take some time to fix this, nonsesical yelling and threatening him does nothing but give him the attention he wants so please don't do this
Also it should be mentioned that unsubing from Joel's Channel does nothing but give this asshat what he wants, as I said before the thing that surprises me is he might actually be extorting joel in exchange for money, that means all of his kiddie haxing and trolling can now become a real criminal act, but since he hasn't said so its unknown at the time.
I am assuming this because usually when someone asks for a pm on twitter after this sort of stuff they want money deposited to a bank account in exchange for their information back.