Not at all. You seem to think there’s a more appropriate forum for people to join the Linux community, and introduces. Where is that? And how do new Linux users find it? Knowing nothing about Linux distros, where should they ask about distros? Distrowatch catalogs 274 distributions - how do newbies navigate those?
I do think having a “which distro” stickie or sidebar would be handy, but I don’t at all mind the “I ditched Windows” posts. It beats random venting, ranting, and flame wars.