“It shouldn’t fall within the purview of common sechel to ask ignorant people questions”
Actually, I found your comment rather ignorant since the level of knowledge here in the CR is a lot higher than most discussion boards and individuals here oftern have a considerably higher level of knowledge on rather arcane subject areas than your typical LRP.
Having said that, for those who may be a bit skeptical of the whole inyan of davening at kivrei tzadikim to obtain a segulah, than davening at the kever of some relative of that tzadik would seem especially bizarre, unless that relative has his/her own special yichus.