Who an advert may be aimed at
Targeting is where an advertising rule stops being about words and becomes about the list of people the words were bought for. The obligations are simple to state — screen for age, screen for exclusions, honour opt-outs — and hard to observe from outside, which is where the interesting part of the mechanism sits.
The four gates an advert has to pass
- The age gateWhatever the placement, the audience must be eighteen or over. On broadcast that is a scheduling and programme decision; online it is usually the platform’s declared age and its own policy; in a targeted campaign it is the audience definition itself.
- The exclusion gateA person who has self-excluded has asked the industry to stop marketing to them. A regulated operator holds that record, and an advertising campaign that can reach an account list has to be screened against it before it goes out.
- The consent and opt-out gateDirect marketing needs a basis, and in most markets opting out of marketing must be as easy as opting in. The distinction that matters is between an advert placed in front of a general audience and a message sent to a named person.
- The vulnerability gateRules in several markets require particular care where an audience is known to include people in financial difficulty or in treatment for a gambling problem — placements around debt advice, for instance, rather than around sport.
People on the national self-exclusion register: 250,000 → 250,000 ÷ 50,000,000 = 0.5% of the adult population
A campaign that reaches 2,000,000 adults, with no exclusion screening: 2,000,000 × 0.005 = 10,000 excluded people reached.
The same campaign with a screened list: those 10,000 are suppressed, at the cost of building the match in the first place.
A 0.5% overlap is small enough to look negligible in a targeting brief and large enough to be ten thousand people who asked not to be contacted.
The arithmetic explains the enforcement pattern. A rule against targeting excluded people is cheap to state, expensive to prove and easy to comply with in the direction that matters — and the only party who can check it is the one applying it.
Why the audience definition is the real decision
When a campaign is targeted, the audience is a query: a set of conditions applied to a population. Every condition narrows the reach and every narrowing is a decision about who is excluded. The age condition is usually mandatory. The exclusion condition is mandatory where a list can be matched. The rest — interests, lookalike audiences, frequency caps — are commercial choices, and a great deal of what a reader experiences as "why am I seeing this" is the product of those choices rather than of a rule.
This is also where the phrase responsible marketing gets used most loosely. A campaign can be fully compliant on age and exclusions and still be built to reach precisely the audience it would be uncomfortable to describe out loud. The rules constrain who must not be reached; they do not usually constrain who is worth reaching.