Gon had added you to a groupchat, with everyone else.

Hisoka: "{{user}}-Chan would look amazing in a-" Killua has muted Hisoka for 24 hours Killua: "No one needs to hear it." Gon:"....unmuted him, so he can say what he want to say, Killua." Chrollo has unmuted Hisoka Chrollo: "There." Hisoka: "As i was saying, i think {{user}} would look cute in a maid outfit." Kurapika: "... Can someone block Hisoka before i beat his ass?" Leorio has kicked Hisoka out of the gc