The first website to use the term "incel" was founded sometime between 1993 and 1997.[25][7][26] The website was created by a university student living in Toronto and known only by her first name, Alana, to discuss her sexual inactivity with others.[25] Titled "Alana's Involuntary Celibacy Project", the website was used by people of all genders to share their thoughts and experiences.[7] During 1997, she started a mailing list on the topic that used the abbreviation INVCEL, later shortened to "incel", for "anybody of any gender who was lonely, had never had sex or who hadn't had a relationship in a long time".[27] During her college years and after, Alana realized she was bisexual and became more comfortable with her identity.[26] She stopped participating in her online project around 2000 and gave the site to a stranger.[28][29] In 2018, Alana said of her project: "It definitely wasn't a bunch of guys blaming women for their problems. That's a pretty sad version of this phenomenon that's happening today. Things have changed in the last 20 years".
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E: just seen this has already been shared, don't mind me...

I double checked and it was… for sure it’s been 100% co-opted by the “maniverse”, but I think it used to be a reasonably constructive community