The word in question is not "fuck". It's "faggоt".
[And before someone complains: the above is an instance of metalinguistic usage of a word. It's morally OK as you're using the word to refer to itself, instead of using the word to convey any discourse that would target a marginalised group.]
Ahh yes where in some states, rapeing little girls and marrying them off, so the child whose abortion is considered criminal, can grow up with a mom and dad, is endorsed by the "devout Christians"
On January 1, 2020, Lowtax changed a setting so that unregistered users could not see the forum index. Anyone not logged in would be given the banpage because of '=' in place of '==' in a section of the code. This led to discovery of an ancient bit of radium code that changed 'unregistered user' to a homophobic slur. Jeffrey fixed the bug, but this load bearing slur will live on forever.
While details are scarce at this point, my best assumption as to what happened hinges on the idea that non-logged-in users with a presumed username string value of unregistered user were meant to be forwarded to the login page, but because a separate section of the code changed the string value of unregistered user to [homophobic slur here], hence nobody actually got the correct forwarding and they were all sent by default to the ban page. If I recall, this led to the unintended side effect of non-logged-in users being unable to log in.
Verge's editorial standards may discourage printing out the f-word in question, but following the links shows it to be the f-word for homosexual, not the f-word for copulation.