It technically originates from ~1993, but it was an obscure term only used on one site then, the popularization is as you say much more recent.
archive.fo
lel apparently it's also a surname, imagine being Mr. Incel:
surnames.meaning-of-names.com
And Insel / Inzel are kike names.
Do we have actual evidence that this bitch coined the term, or is it just some polysexual anarchogender hambeast's word?
Wayback archive from 1999:
web.archive.org
fair enough
Is this you bioman?
I've had both, and gents, its Stacy all the way. Becky is a cunt.
heh
Virgin boomers don't understand the Chad gen x memes.