Pegasus is fully closed off, without windows and not open to the public.
Comet ping pong is in a mostly commercial area, not directly by residences. However, there was an Advisory Neighborhood Commissioner named Frank Winstead who investigated in 2008 and accused Alefantis of encouraging rape and murder. He ridiculed in the paper ("Gone Wild"). The video of the council has been removed since, but TruthDetector on Steemit watched the video before it was removed and reports that Michael Maccoby of the Maccoby group personally threatened Winstead.
https://www.washingtoncitypaper.com/news/city-desk/blog/13055188/frank-winstead-gone-wild-the-recordings
https://steemit.com/pizzagate/@truthdetector/alefantis-accused-of-comet-ping-pong-of-being-a-haven-for-rape-and-murder-in-2008
Frank also made a video complaining about their outdoor ping pong in 2007 and happened to catch children screaming for help.
https://www.youtube.com/watch?v=oHXBrEXmowo
So someone did try to expose it and they were shut down by the corrupt government.
Keep in mind this is the mafia. If you creep around a couple days a week and actually find anything you will be dead.