It's not a matter of caring.  It's a matter of not really being able to do anything about it.  Ghash.io has rate is mostly their own.  And if they reach 51% on their own hash rate what can anyone do?  What should anyone do?

If that happens then bitcoin price will fall.  Hopefully they are only interested in making revenue for their company.  Because if that is the case then they will mine until the price crash's and then quit or tapper back dramatically and move onto the next "get rich quick" scheme.

So Bitcoin will correct itself using market forces or it won't.  To exert other pressure on an entity to do what you/we want them to is an assault on human dignity and is the antithesis of the principles of Bitcoin if the first place.

So let Bitcoin go through its own correction or let it die on it's own merits.  Micromanaging the network will be a failure in the least a disaster at the most.

Sorry if these thoughts have already been posted.  I don't really feel like reading this whole thread.