What's up with so many emails

From: Sylvain Saboua <sylvain.saboua_at_free.fr>
Date: Mon, 24 Jun 2024 00:29:34 UTC 
I subscribed early summer for various haxker projects... I am 
disappointed that FreeBSD has relayed such copious information amounts 
that my mailbox is now full ; why so many lists, and why is it so 
tedious to find the ones I am still subscribed in?

Cheers
-- 
Sylvain Saboua
www.saboua.xyz