Just wait for another crypto heights ;) That will be interesting test for applied solutions. Anyway, it's process and Steemit seems for me to be revolutionary step in terms of organising social platform.
For sure but as the crypto price goes up so does the value of the resource credits to post; so in theory it should be self curtailing as spam will get more expensive as they take up larger part of the shared resource pool. People with deep pockets will still be able to spam however. So we will see. I was getting multiple spam posts to every post on my account even when price was low and it all stopped with the RC system. Church of god seems to be the only one bucking the trend with that at the moment and funding spam accounts.