Easy sharing makes restraint a more valuable skill.

When sending costs nothing, the only limit is your own judgment. Every unfinished thought, every screenshot, every private thing belonging to someone else is one tap from being public, and the restraint that used to be enforced by effort now has to come entirely from you.

Adopt one rule and keep it: nothing about other people without asking. That single boundary handles most of the harm available to you, and the small friction of asking is the entire cost.