Per 
Narrative: the foundation discovers the anomaly by seeing people talk about it online. For some reason, they are able accurately to deduce the SCP Foundation, its goals, where its sites/areas are, what they did, the anomalous world and yet, they cannot find anything anomalous about it.
They decided to prepare for a Broken Masquerade scenario instead of trying to prevent it because the scope of the SCP is affecting the entire world.
In the meantime, they're also funding Project Viŝi, which is aimed to erase specific information from the human mind and it can do that globally. The only issue is that it will take time to work it, as well as to try and spread it to the globe.
They're gonna try and do this by spraying the aerosol from Project Viŝi into the atmosphere, which will cause to whoever inhales it to be affected by it. There are no side effects, just that you'll be able to get your memories erased by whatever the Foundation decides.
During the creation if the Project, numerous people began making shit-posts, visiting Foundation sites, attempting to vandalize them, visit uncontained SCPs, try and protect/keep those SCPs, etc.
The one thing you should know is that the Foundation has no idea what's causing the public to accurately deduce knowledge of the Foundation, they don't know why it's happening now and they cannot find anything anomalous about it. They even checked the Noosphere and found nothing out of the ordinary.
They activate the project and it works at first but a day later, everyone remembers the Foundation, as well as knowing they tries to erase their memories. They do this again, and again, and again and again until they give up because they cannot keep doing it forever, not does it solve how they keep re-remembering it.
Without of options, the Foundation gives up and accepts the fact that they are experiencing an LV-Class "Lifted Veil" scenario.
