The 20% thing always bugged me from day one with Zcash. For one why did they need it all in the first 4 years and not just do the 10% over the life of the coin? Who is going to fund development after the first 4 years? 

I let such questions go early on, but now with this attitude they are taking of embracing ASICs after launching the coin as ASIC resistant as one of the core features really has me doubting their long term commitment to the project. How long after the 4 years worth of dev payments stop does Zooko and his crew move on to a new coin as Zcash is no longer the viable platform they hoped it would be.

New coins are a dime a dozen, and realistically the features they claim that makes them unique are often superficial at best. There are probably only a handful of coins that are truly unique, and even of those, other coins could copy many of those features with ease. The only thing left is the community that stands behind it, and when you start alienating a large percentage of that user base you no longer even have that.