Точка зрения Гевина Вуда о валидаторах и о системе NPoS:
There are a few points to make here:
Becoming a validator is not meant to be a trivial action. While it would be nice to let everyone who wants to attempt to become a validator have a shot at it and get rewarded in the same way as everyone else, the realities of designing and engineering a sharded network within a reasonable timeline mean that it was never going to happen, initially at least. Practically speaking, becoming a validator will require that you either control an appropriately large amount of stake (eventually around 0.05% of the total issuance or ~5,000 DOTs) or that you are sufficiently well-trusted by other stakeholders that they are willing to take a chance and nominate you up to that amount. This is a fundamental aspect of NPoS.
The end goal of NPoS is not to be inclusive and not even to be decentralised: it is to be secure and reliable. Now one of the ways that we attain this is through a degree of economic decentralisation and one of the ways we try to achieve that is through inclusivity. However, the two are not ends in themselves. Security and reliability will always come first and if designing a secure and reliable system which is practically engineerable in a sensible period of time means that we need to limit the amount of validators and require all to be roughly equal in stake, then so be it - if this results in a level of inclusivity that not everyone feels is sufficient, then it may simply be a necessary trade-off.