If BITMAIN is currently mining with the best ASIC miners they’ve got and selling old ones to the public, they should dominate Zcash mining distribution right now.
But now, Flypool has 60%, Nanopool, F2Pool and MiningPoolHub have 10% each of the network hashrate. As everyone knows, you need your own pool with over 50% hashrate in order to take over the network.
This fearmongering BITMAIN-dominating-Zcash-network arguement has been debunked quite a long time ago. Unless you’ve found a new evidence to back up your claim, please stop posting the same argument over and over. This thread has been flooded with them.
About ASIC-miner-can’t-earn-enough argument:
As long as you are staying as an GPU-only miner, that’s not really your concern, isn’t it? It’s for people who are planning to buy ASICs. If you think Zcash is going to go downhill beacuse of ASIC, you should sell all of your Zcash and switch to the most profitable crypto there is, you can even trade it for Zcash if you still want to invest. So don’t say something like “Oh, ASICs are going to ruin our mining businesses :'(”. You are dealing with money here, you should keep checking what’s the best option for your earning.