Surely this isn't a 51% attack on bitcoins, right?

[abracadabra]

https://rfcpool.com/ still working just fine 

+1

[DeathAndTaxes]

It is my understanding that Ghash's count towards blocks found either solo or at a  pool equally well.

This.  Being in a pool doesn't solve a block faster.  The only disadvantage to solo mining is variance.  The only advantage to a pool is reduced variance.  If you are in a pool you STILL have the exact same variance in your individual block solving times the pool merely smooths the financial aspect of that variance.

[paraipan]

It is my understanding that Ghash's count towards blocks found either  solo or at a  pool equally well.

This.  Being in a pool doesn't solve a block faster.  The only disadvantage to solo mining is volatility.  If you are in a pool you STILL have the exact same volatility in block solving times (as an individual) the pool merely smooths the financial aspect of that volatility.

...you mean variance, right ?

[DeathAndTaxes]

It is my understanding that Ghash's count towards blocks found either  solo or at a  pool equally well.

This.  Being in a pool doesn't solve a block faster.  The only disadvantage to solo mining is volatility.  If you are in a pool you STILL have the exact same volatility in block solving times (as an individual) the pool merely smooths the financial aspect of that volatility.

...you mean variance, right ?

Yeah variance is likely better word choice.  Pretty sure the words are interchangeable though.  right?

[meanig]

In statistics variance=(volatility)^2, but colloquially the two can be interchanged.