Blocking is the strongest personal privacy control PopIn offers. It's silent (the blocked person isn't told), one-sided, and reversible.
Block someone
Open their profile
From a chat header, a comment author, or a guest list.
3-dot menu → Block
Confirm on the dialog. It's instant.
What blocking does and doesn't do
| Does | Doesn't |
|---|---|
| Stops them messaging you | Tell them they've been blocked |
| Removes any friend or follow connection (both directions) | Delete past messages or comments |
| Hides your existing direct-message thread with them | Count as a report (the two are separate) |
| Is account-level and reversible | Carry over to a new account they create (no device fingerprinting) |
Unblock
Open Settings → Privacy
Find the Blocked users section.
Tap Unblock next to the person
It lifts the block but doesn't restore a friend or follow connection, send a friend request again if you want that back.
Block vs report
Blocking is a personal action, it stops one person reaching you. Reporting is a moderation action, it asks the PopIn team to review behaviour for everyone. For mildly annoying, block. For rule-breaking (harassment, hate speech, spam), report and block.
Blocking is account-level, not device-level. If the blocked person makes a new account, the block doesn't follow. For repeat-offender stalking or harassment, the right escalation is block + report + (if needed) involving the police.