User blog comment:DaNASCAT/Technical Update: March 7, 2016/@comment-25648422-20160308045558/@comment-68.41.43.52-20160308170727

an easier way is to go check another wiki's special:listgrouprights. basically as DEmersonJMFM, those were the exact rights being changed - probably would have been better if the exact changes being made were initially just pointed out to prevent any confusion. thus bcrat is back to simply being a promote/demote group as originally intended by design.

here's the permissions bcrat ends up with along with the promote/demote of all user group except global/staff. normally bcrats are expected to have admin, promoting someone directly to bcrat is ill advised and doesn't give them admin. hope this explains it better
 * Unblock themselves (unblockself)
 * finishcreate (finishcreate)