d5 just gives Black c6 and f5 breaks which are very powerful, and White is in no position to stop them because he is not well developed and he has no breaks of his own.
Scotch Four Knights... What would you do after this move?

Dear, I do not give the slightest fuck about your beliefs. Keep them for yourself, and enjoy them.
Understood?
pfren: Of course.
However I will post as I please and take your inability to respond cogently in my favor.
Dear, I do not give the slightest fuck about your beliefs. Keep them for yourself, and enjoy them.
Understood?