User blog comment:Arbington/The Next Cycle/@comment-24200891-20140106165807

Raloi are the only pre-flight race that knows about the reapers. The know about the relay network and citadel, but also about the reapers. If the Reapers took over the Citadel, they can use all collected informations, including raloi, because they are mentioned in the reports. When the reapers read the reports, they'll start considering raloi as a future threat, because if that race survives the cycle, they'll be only aware of the reapers and they'll prepare as the proteans planned. However after the cycle is over next generations of raloi can start consider Reapers as myth and later as a fairy tale, not real threat. Monsters described in ancient scrolls and tablets we discovered aren't considered as real, so the same can happen to the reports about the reapers. Another problem is Protheans left their beacons, but they were all discovered too late and not used as they were supposed to be and same can happen to Liara's recordings.