They are not hiding behind pseudonyms and attend meetups regularly, stuff like RingCt was peer revieewed by legder journal...
And yes i call zcash skechy too, creating a currency with a trusted setup and stuffing 10% off all mining rewards in your pockets its an outright scam.
I wouldn't go so far as to call reCaptcha a gimmick. It is an excellent example of how a slight modification/re-mapping of the original problem-space can solve more socially/commercially useful problems.
PoW has proven itself in the field for years, while PoS is still untested at scale. Being able to piggyback scientific/medical/environmental computation over a PoW scheme would provide significant value as opposed to a fairly useless compute problem such as the double-SHA256.
The key here is to be able to re-interpret/re-state a problem in terms of the PoW algorithm with the following characteristics:
- Expensive to calculate, cheap to validate
- Dynamically-adjustable difficulty
An ideal implementation of this would be similar to an OS running an idle process (double SHA256), and switching to running user-processes (medical/scientific computation) when needed/instructed.
What a load of crap article, Instantsend bullshit can per se not work, it takes time in a consensus network to reach consensus, except u are losing some kind of offchain network like Lightning/Raiden.
The inbuilt coinmixer is also a hilarious joke, jeez.....
Uber is really bad in SouthEast Asia, Grab is by far the most used here, especially in Singapore, Thailand and co.
Uber is also useless in China...
Grab just offers so much more from motorcycle rides, delivery service, payment etc...
In germany and other european countries Uber is also completly useless, they have to use local law abiding apps like MyTaxi.
So no, Uber does not have a solid worldwide presence i would say, Singapore, Germany and other are clearly what u call first world...
They use an OTC broker like genesis or cumberland (DWR).
Can easily sell up to 100 mio and receive it in cash the next day.