Is Afrigeneas' purpose to provide credible resources and serious discussion concerning the real, documented history of African-Americans?

Yes.

Or is it this site's position that we don't have enough difficulty disseminating accurate information about blacks' contributions

Ouch. This site, from the very first post, is about disseminating accurate information about blacks' contributions. You're being a little unfair and harsh on the UGRR Forum manager and Afrigeneas.com.

- that a drop of "fakelore" here and there just keeps people on their toes,

Our burden is to educate folks along the way as to what is fake and what is factual.
In my opinion, "fakelore" needs to be exposed and challenged at every turn.

or that nobody really cares one way or the other anyway?

I think this thread and others on the 'Quilt code' decidedly shows that people really really care.

How else to explain this site's advertising Ms. Kemp's "museum"?

The UGRR Forum is about discussion, not advertising. It's information. It's citing the source!

I thank Bennie McRae for telling me such a museum exists and where it's located.
I thank him for providing evidence.
I thank him for letting me decide what to think or do with this information.

I believe we are on the same side of the fence with this issue.
I applaud your efforts in challenging Ms. Kemp...
Let's not shoot OUR messengers!

Peace,
"Guided by the Ancestors"