A quest cape skiller is a RuneScape player usually over Combat Level 100, that trains all skills to be high without getting a respectable skill cape, instead wearing a sub-par quest cape. They usually have a fail total level.
James: Lol, this lvl 110 quest cape skiller thinks they own the show with their 70+ stats and shitty quest cape. Shame about the 1800 total.
Matt: Yeah, nub much.