That's because they know deep, deep down that men generally prefer to commit to women who have a lower n count so they try to shame their friends and non friends to be as slutty as them. Shaming them and calling them boring, envisioning a sad and cringe future for them, calling them losers and such.

Doing that will bring those low n count women to their own level. This makes them be worried less of their sluttiness.

Being promiscuous will lead to more sadness.

Sluts will have less happy marriages.

It will lead to regret.

If you are slutty in your younger years it will lead to problems.

Based on this source:

A woman who has had more than 100 past sexual partners would only have access to the 25% of men who do not care about her sexual history.

A woman with between 20 and 100 past partners would have access to the further 8% of men who only care about her sexual history once her number of sexual partners exceeds 100.

A woman with between 10 to 20 past partners would have access to a further 19% of men who only care about her sexual history once her number of sexual partners exceeds 20.

A woman with between 1 and 10 past partners would have access to a further 39% of men who only care about her sexual history once her number of sexual partners exceeds 10.

And, a woman with no past sexual partners would have access to the final 9% who care whether she has had more than one sexual partner.

Some random charts: https://i.imgur.com/rrLe319.jpg

So sluts always feel the need to shame women who are chaste and bring them down because they feel jealous of them. They also feel the need to shame men who want chaste women and call them insecure and fragile to stop men from saying what their preferences are so that chaste women will feel more comfortable becoming sluts.

CMV