I think there MAY be some confusion here. One can
Post# of 148288
I am not sure that the lawsuits filed by 13d are duplicative of each other, are they? If not, one MUST choose the correct forum (be it state or federal) or the court will not be able to hear the case. Depending on the kind of case it is, there might NOT be federal jurisdiction in the new case. I don't know enough about it.
Again, this does not make a lawsuit frivolous by DEFINITION, it just may mean that one has to re-file in the proper venue.