The SPG T&Cs do not state that some rates are too cheap for credits or elite benefits. I would hate to see such a restriction imposed, as I understand one chain does, thus leading to discussions ex post regarding whether the rate was too cheap to count. AFAIK extreme promo rates, providing they're published and booked through spg.com, do get SPG point/nights/ stay credits and elite benefits, even when the rates are arguably mistakes.

It's standard in the hospitality industry to not give elite status and benefits on special travel industry rates such as those made available to travel agents. The same is true for employee benefit rates; nonrev travel does not earn status or redeemable miles. Hotel employee/family/friends rates should be treated the same by SPG. Employees receive a different set of employee benefits, including certain travel privileges. Plus, do we really want to get into Sheena accusations when an employee on a STARHot rate is given a suite upgrade over a Plat paying a standard rate?