Do you really believe in decentralized mining? Decentralized mining is solo mining, which was in 2010-2012, but when mining pools and adequate profits appeared, many private companies begin to make money on it. And its main goal is to maximize profits.
Yes. I still believe in decentralized mining. While centralized mining pools have take over the Bitcoin blockchain, there are some solutions available to help make mining as decentralized as possible (stratum v2 mining protocol, betterhash, P2Pool, etc). I think this would work better with CPU-mineable coins since they're highly accessible to everyone. All it takes is for developers to push decentralized mining solutions for the community to adopt them.
As for coins that can be mined with HDDs, I don't think there's going to be a bright future for them. As many have mentioned, HDDs cannot be resold on the market unlike ASICs, GPUs, CPUs, and FPGAs. That's because nobody buys them due to loss of the storage medium's reliability, among many other things. It's why HDD-mineable coins like BURST and CHIA will only become a niche in the long run. At least, we have a variety of mining algorithms to choose from. As long as decentralization wins, there should be nothing to worry about. Just my thoughts
