Schadenfreudler /ˈʃɑː.dɘnˌfrɔ͜ɪd̥.lɘr/
If you don’t know how to read IPA, roughly “SHAAH-then-FROYD-ler”
Btw: I just constructed this word based on my native speaker intuition. I doubt that you can find it in a dictionary, because it’s not something one would force into a single word. A more natural way to say what you mean would be “Leute, die (hier) (auch) Schadenfreude empfinden”, which translates to “people who (also) feel Schadenfreude (here)”.
Right-clicked on the link, copied link, went to archive.org, pasted link into wayback machine, selected most recent (in this case only) snapshot.
As you can imagine, it doesn’t work if archive.org hasn’t archived the link yet.