I was Black. My question is, what should my/my opponent's plans have been in this position? I had just moved Qb6, so it was now my opponent's move (White).
white has a much stonger center and should try to put his rooks on the d and e files to push forward. First, he has to deal with the immediate threats of Qxb2 and Bxc3. White isn't in too good a shape on the queenside as it is because no matter what he does, he will soon have isolated a and c pawns
And if anyone was interested, here was the game up to that point:
first of all, black is the one with the strong center here. don't play Qb6 it does very little, i would suggest Qc7 or d5. white is already worse. in the position after Qb6 white should play Rab1 then black plays Rab8 then Rfe1 and Qc5 or Bd7. . . black is in charge.
Black playing d5 makes a ton of sense here, and I did play it a couple moves later. I've had a lot of trouble knowing when/how to develop my Queen in positions such as this. Qb6 does come with the simple threat Qxb2 but this can be parried. So I can see what you mean when you say that it does little. Can you explain, what are the advantages to Qc7?