I voted no but only because I doubt there's enough call for it. Don't remember any member asking for it before, but could be wrong. If you search AR15 seems there's only 20 threads that mention AR15 in last 6 months.
Maybe having a dedicated section would make it grow, I don't know. I remember wondering if the 1911 section was needed that we added in 2011 when Ruger got into that market. Now 12 years later there's only 58 pages there or about 1100 threads total.
I'll support whatever the majority of members want and Admin allows.