Don't forget that 20% of mined coins still go to ZCash Founders

Mining
1

Here’s their wallet:
https://explorer.zcha.in/accounts/t3Vz22vK5z2LcKEdg16Yv4FFneEL1zg9ojd

Already has 43 ZEC there (which is an accurate 20% of 216 ZEC total monetary base)

2

you don’t like, you don’t participate
peace

3

Yes. There are just many questions that mining on pools brings less than calculated, and this is one of the factors.