There is only one way to fix the centralization issue with validators and that is to limit validators to a max amount delegated. Period. But we can’t limit a validator to only 5,000,000 ONE each right now or maybe ever. We don’t have enough validators for that. And would have to set fees to 20+% to make it profitable or worth it at all considering the current value of ONE. This is something that would have to be done on a sliding scale that changes accordingly as needed. But is truly the only way. Any other attempts without this restriction in place will likely be feeble and in vain. There’s no way to prevent people from staking massive amounts of ONE on a validator of their choice. Aside from a hard cap on what validators can have delegated to them.
There are risks associated with creating multiple wallets with more private keys to maintain and secure, especially for exchanges. The friction of going out of your way to increase stake to a validator should be higher than delegating to many validators which also has the benefit of diversification. I suspect the latter isn’t being done today simply out of laziness and lack of caring.
You may be correct here. At the same time, I do know that some people will do whatever they have to in order to circumvent rules and make max profit. If they can get another 1% profit on a billion dollars with of ONE with a certain validator, that adds up to a lot of money and makes it worth it for them to go through the trouble of using many wallets. And a script could create and manage the wallets easily within minutes. I’m just thinking ahead here to help save Harmony because as you all know, I truly love this space and everyone here and would like to see this project succeed. Very much so. Hell, just the name “Harmony” and ticker “ONE” make it worth saving because it means something very special to me. We are all ONE as the human race and the day that we realize that and live and work together in Harmony, amazing things will happen. 
The largest whale staker is binance with 2.5 billion ONE staked across two wallets which is almost half of all the ONE currently staked. If you look at their delegations it’s clear they aren’t trying optimize for profit. Many of the validators they delegated to either have suboptimal uptime or fees as high as 40%. A lot of these validators are also not active in the community:
https://harmony.smartstake.io/address/one1tvhgyvt94gkf7sqgude5tu6709kt9vg66pzwfv
That is true. I wonder why they would even do this. Perhaps they know the people that run those validators or even fund and run them, themselves either directly or indirectly. I just wish they would care enough to help us save this project from failure I truly do. Perhaps someone at Harmony can set up a meeting with them and talk in person about this and come to a resolution that works for all parties involved. I would do it if someone from Binance would meet with me. But that’s not likely to happen lol. We really do need to figure this out though. It’s very important that we do. And thank you Robo for discussing this with me and I’m very happy to know that you are putting effort forth to help us all out here. Means a lot
So basically all our hope in Harmony team to ask binance to undelegate some ones?? That s totally opposite of what harmony team wants cause Project success if 45% of supply staked or ma I wrong! What I can see is a failure of gouvernance not a project thank you
Possibly having diminishing reward for wallets above the accepted threshold that is voted upon, maybe having a way to redistribute those rewards that are diminished if this is what the network goes with? I feel like having a max on how much a wallet can hold seems futile; people can make many wallets and split their stake.