Some users are exceeding 200 rep / day. Is there an enforced rep limit in Beta? If not, when does it kick in -- I'm sure some of us would like to make use of an unlimited/exemption period.
The reputation cap (200 rep/day) applies to both beta site and graduated sites.
But any additional reputation you earn from "accepted answers" and bounties are immune from the reputation cap. So it is possible to earn more than 200 reputation per day if you hit the cap but have addition points earned from accepted answers and bounties.