It seems to me that every time the media or anyone does a story about Incels, they help this twisted, deranged thought system spread among certain people who might be disturbed or vulnerable to it, but who otherwise would not have heard about it. Then they might wind up spending time looking it up and getting involved with it online. To paraphrase Matthew McConaughey's character from the first season of True Detective, it is like a language virus that self replicates and dulls critical thinking.
It also might plant the seeds of acting out at the Joker movie to other disturbed people who might not have otherwise thought of it.
I had never heard of this term before some guy in Canada ran over some people with a van.
I understand that it is news and is going to be covered, as well as the responsibility of law enforcement to make warnings, but I think the whole growth of Incels is a classic case of social contagion.
I m sure that there are some teenagers out there who have never been successful romantically who stumble upon the term and then start reading up on it. They wind up adopting the beliefs, and identifying as incels, and thus it becomes a self fulfilling prophecy. This is what makes it so insidious.