Reactance
When people feel pushed or trapped, they resist, sometimes against their own interest.
Why it matters
Forcing a choice can bring worse answers, more anger and less trust than leaving people free to say no.
How to use it
- Always leave a clear way out.
- Replace "must" with a good reason.
- Make surveys and upgrades optional.
Example
A paywall with a hidden close button can make people want to leave more, not less.