Yet another reason to move your piracy startup to the Strait of Malacca

That is because no one is in Somalia receiving the information and sharing it on this network.

The parent has a valid point. If AIS (Automtic Identification System) is being broadcasted by ships that traverse the area around Somalia, pirates could indeed decode these transmissions using a simple VHF radio and free associated software, and literally have a map of detailed locations of all broadcasting ships within about 25-50 miles of the receiver (VHF is typically line of sight)