It is not an appeal to ignorance, but a fair question. I think it is important to question any iffy part of a potential leader because in the end they will be making decisions that affect us all. Now I'll admit that I have not read too much about the whole Ayers thing, so personally I have not made up my mind one way or another. However, I do think it is good that the media questions the potential relationship just as I feel it is good that the media questions Ron Paul's potential relationship with his staffer.
But in the end it is possible no? No one can read Ron Paul's or any other leader's mind, so at a certain level we have to use our knowledge to believe what makes sense to us. Everyone is entitled to their own opinion- I personally think that Paul is not a racist.
As I said earlier, I am not completely familiar with the whole Ayers controversy, so I am not leaning one way or another. Of course it makes for political ammo, but that does not necessarily mean it can't be true. Any bad publicity makes for political ammo, but that does not mean all those things are made up just for the politics.
I would say it isn't about conservatives or liberals either because even those two groups have vast differences in them in both interpretation and what they believe in. I am all for looking at the individual and his/her beliefs and positions as opposed to an entire groups. There is no doubt in my mind that there are racists who identify themselves as Democrats, Republicans, libertarians, totalitarians, conservatives, liberals, or whatever other group. Anyone who denies that is just blinding themselves.
It should also be noted that being racist against non-white people is just as bad as being racist against white people. Voting for someone because of their skin color is racist as is setting quotas for racial minorities, etc.