Tau foundation has not fixed up plan to control minging club to operate under 51%. One potential way during mean time is simply keeping foundation nodes to stay above 40% transaction mining power, this makes it very hard to achieve 51%. (Our current labor is focusing on mainnet, balance system, wallet, signal voting and removing time. )
It is our goal to have PC be able to intermittently run full nodes since there is no heavy computing neither storage work engaged. PC is getting more powerful everyday.
The way I understand TAU fairness is not by equalizing everyone, but reducing the entry barrier to common people. Both tau technology and coin econemy address fairness in following way: we are running bounty program for very long time to allow mininum effort to get on board TAU, hope 20 years from my perspective. We keep coin out of inflation. We reward common people essential behavior, spending money for living, rather than rich people racing on hardware and asset hoarding. I would claim we are more fair than POW and POS, but never want to claim the best and abosolute, even thought that is our long term mission.
For DDOS resistance, our mining signal system can easily allow mining leaders to randomly delegate to different address to avoid DDos. Here it is, mining club leader rent 1,000,000 IP addresses, each address associate to one TAU wallet address, then using TAU signal system randomly assign mining power to one of those 1,000,000 address, because DDos never knows club randomness to find IP to attack. I always trust randomness algo, which bitcoin is designed around, than oracles. It is our design purpose use TAU onchain signal system efficiently resist DDos and many other cool things.