Soror Ice-
So what, you use the same handle. A lot of people do, who can remember all their own handles? Better yet, all the line names given to me--that's another story
You have to suck this one up as an experience with a harried interest. Interests that broadcast their intentions publically are a nuisance and an eyesore.
When you encounter them, you have to "deal" with them appropriately. Usually in the manner of knowing what your documents say. How are they going to argue our CB and MOSP's? Really? When I say stating them, I mean, Article III, Section 12, New Membership Undergraduate, clearly states, etc...
Moreover, you have to ALWAYS display what is becoming of an Alpha Kappa Alpha Sorority, Inc. woman. ALWAYS. Your "Net presence" is "nettiquitte". Protocol is always in effect.
I would let her lie on the other board. Eventually she will tire herself out. And I would like to know who she is and where the board is because if she enjoys confrontation, she will be dealing with a nearly 20 year senior member who actually has dined with the several Supremes at the house...