I think shadowbot is working well and pretty fair for all, its nicely balanced, my only issue and its a big one is the abuse i highlighted, I think there needs to be clear rules in place for that on what is ok and what is not.

Too the lower SP people - what you have to understand guys that shadowbot is not a get rich quick scheme, you cannot expect to join with the free SP given too all new accounts and expect to start earning loads. Almost all accounts with a high pool priority have been invested in steem and  for a long time, not only with time but with money - this has to be recognised and rewarded otherwise people with higher SP will simply leave. 

What shadowbot offers to new steemit users is upvotes they simply would not get if they were not members, not only that but it gets your posts some exposure. Its a marathon not a sprint, set your sights on the long term goal not short term and in time you will be rewarded.