Because he wants public clout and legitimacy. And yes, every normie wouldn't want to join his site because there is enough history out online to expose him and his site as a piece of shit without them being able to hide behind ambiguity or claiming to be a free speech site. Anyone that falls into the sektor is gonna have a hard time getting out and that is nearly impossible when doxed, they are crabs in a bucket and Josh is desperate to find a neon sign that signals people into his forum. Twitter/X is basically his only chance to communicate with people in a open social platform and with him getting banned, it sends a message to people that right or left wing, no body likes KF and anyone that do, are either sycophants or they are just using their autism to get info on lolcows.
As for him Socking, This clown is too egotistical to do that, Metokur is more than willing to be discreet enough to do that.
Finally on the point of people telling him to shut the fuck up, they either get banned, doxed or both because Josh is just that much of a thin-skinned bitch. KF is basically his book of grudges