"BlackRock's six-digit numeric code (340965) is notably less circulated in public forums than three-letter ticker codes, slightly reducing discovery risk. However, finance-sector codes in NYC and SF see elevated scrutiny. "Medium-risk codes are subject to spot checks, especially during mid-week peak business travel, with properties in major metropolitan areas being the most likely to ask for a badge." BlackRock's NYC concentration and premium rate level keep this firmly at Medium. Numeric codes also trigger less "code sharing" behavior, reducing overall exposure volume."

"I work for the front desk, at a Marriott, & have for the last 8 years .... So when it comes to room upgrades; it goes based on AVAILABILITY... sometimes no matter the tier, if we have it available - I will upgrade the guest. Now of course, higher tiered members get dibs on the upgrades first but after we go through the higher tiered members, Ambassador, Titanium, Platinum - then we go through the other ones. I cannot express this enough : BEING NICE & POLITE AT THE DESK GOES A LONG WA"

"I work as a consultant and frequently ask for and use my client's rates (at their insistence, since I will be billing them back). I have been asked for ID maybe one time in 15 since February, when it was announced in this forum that rates would be ID'ed."