First, you keep dragging one quip by MacArthur into these discussions as if it carries the ultimate weight. Any one person can say things that don't come off the way they thought they would, or even be mistaken, but also be of a general opposite direction in their general theological tenor, and i find that to be the case with both Piper and MacArthur, both of whom you have cited in your effort to find some common ground (i.e., persuade those who see things other than you that you alone are correct).
And second, yes, you in particular, as a moderator have started countless threads designed to draw in those who have a different viewpoint, not to discuss or even debate those points, but rather to offer an olive branch while having an ulterior motive in hand before the thread is complete -- that being to attempt to smash or otherwise discredit the theology of the one with whom you disagree. In the socialist political realm it is called "spin" or "politically correct speech." Here, it is just argumentation, but the effort is similar.
In that sense, where are the Calvinist moderators on this board?
I am not in jest at all... Post count drives forum life. If the Calvinists that the moderators of this forum continually beat up would just withdraw, the forum would drop in threads and posts in a dramatic fashion almost instantly.
When I see posts halted just because certain moderators are pinned up against the wall while other threads continue forever because the prevailing side is ahead, it sends messages to persons that are on the other side of the equation. When I find mods who argue against orthodox Christian doctrine that has been held by the church since its inception, I wonder what the hidden agenda of this board truly is.
As for why I return? I find the arguments, no matter how far afield from actual tested biblical theology, to be worth the cost in order to cause me to clarify my position. In other words, I'm using this site to de-sensitize myself to the arguments of humanists, atheists, liberals, communists, and others of various religious and philosophical vantage points. If I just wanted a place were everyone was in agreement, I could easily find that, but here I find people all over the map in the weirdest sort of ways.