How can this help the miners?
Will the net decrease? however this is forking time but i heard that there is already some fpga able to mine this algo.
I have been tired of mining ethash from the beginning. I hope this algo will be better. As usual it will be more profitable the altcoins forked from this algo for little miners. i never unserstood the people that continued to mine ethereum also if it is not profitable . you are losing money. the net is safe . so why continue to mine.
Good question.
Maybe I can post some comparison about ProgPoW and Constantinople but I wouldn't do it to avoid confusion.
Instead I recommend you to spend your time researching about the effect of Constantinople Hardfork and ProgPoW algorithm, issuance reduction on Ethereum , etc.
Note that ethereum is paying a lot of inflation toward miners, if this discontinues, it will effect other GPU mineable cryptocurrencies in a bad way so there is no way going out from this.