They are referring to the 4chan people who they really look down on.
...upon whom they (really) look down.
If an adjective is needed, might I suggest “disdainfully”?
Quads would be the control number of the post ending in the same digit 4 consecutive times. More frequently you here the term Dubs. In the pol chan world dubs (and trips/quads) are “glorious digits” meaning they are supposed to summon Kek for pending chaos. You will see replies like “Check-em” with characters pointing towards the digits. The most popular being the character from American Psycho...
As far as hatred of 4chan the term I see more frequently used is cuckchan.