If they want to post spam so what.

I do not care about power but I do care about having a space where we are all free to speak our minds. I want a space where if people do not agree with your views then debate can occur.

The internet should be free

Many witnesses have already upgraded their servers to 64GB RAM. Those running RPC nodes are contemplating the leap from 256GB to 512GB of memory. RAM & SSD drives are not cheap.

Whether your talking about the cost or ideology.. I suggest you create and run your own site or fork your own version of STEEM/steemit.com. You'll have about as much luck convincing the majority of the community that are stakeholders that steemit.com should be a place where 'anything goes' and that all content should get rewarded as you would convincing Twitter, Facebook, or other social media sites. If it was going to happen I think the ability to flag would have been removed from the block chain already.