Hey wednesday you little sweety you!
Do you remember when you and Mulder were at each other's throats? Well, fortunately, that thread was not shut down and gave us an opportunity to work out our differences. I didn't agree with you, you didn't agree with me (this was in that curves thread), but the point is we got on really well after that.
Having a strenuous disagreement with a person I find can create a lot of tension and friction between two people, BUT it can also create some mutual respect if handled properly. I just hate to see two people become mortal enemies because they never got the chance to resolve a dispute.
On the other hand, I do see your concern that this could be abused.
For me its no big deal because I don't hold grudges and I can pretty much get along with anyone--I think it more effects those types that hold grudges forever.