anyone other than me has the same thinking that someone might throttle facebook in order for us to talk less?

"someone" is throttling social media apps.

for those who is experiencing facebook loading issue,
install Hotspot Shield Free VPN extension,
turn it on for your facebook page.

Facebook will be back to normal

this damn slowness would only happen at night, and its only on social media.
Thats why i concluded that someone is throttling at UNIFI side.