SlowDownAndWasteMemory()
I like <a href="https://surf.suckless.org" rel="nofollow noreferrer">https://surf.suckless.org</a> (which uses WebKit) but it seems like every time I use it and leave a window open for awhile, that process (WebkitWebProcess) will end up pegging a core for no obvious reason. It's not site dependent, and I think it's when JS is enabled.