eCampaigns discount is code D55, which yields a $99/nt. rate at the Washington Marriott for a weekend in October.

I'm wondering what this is, as it sounds vague enough that I might actually be eligible for it or able to become eligible if I deem it worthwhile in order to get the rate. (Honestly, "eCampaigns" sounds like an email distribution list.) The rate rules do not provide details. I found the code in the sticky thread, and Google doesn't turn up anything relevant to the Washington Marriott when I search "D55 Marriott". It looks like other Marriotts use it as a local discount code for things unrelated to eCampaigns.

Is it a rate with which a EEO or Premium Pounds would be eligible?

Please save the ethics lesson: if it turns out that I'm not eligible for it, I'll stick with with an M12 rate that yields a Bonus Buck at either JW or Wardman Park. I'm just wondering if anyone has actually used the D55 rate and knows more about what it is.