I don't like seeing these two fight all the time, because I respect both of them. There is room for argument and disagreement, but sometimes the attacks get personal, which is not good in my opinion.
On the other hand, one thing that I've noticed about Jews in general in how they argue with other Jews (especially in Israel), is that they're less concerned about being polite and nice than they are about being correct. Maybe this is not such a terrible thing.
q_q_ and Muman seem to (in a weird kind of way) worked out a personal relationship that they are more or less comfortable with. If they are comfortable with how they deal with each other, and if it doesn't negatively influence the forum and our movement, then I think it is not my business to interfere.
Just my two cents.