Watch it happen
Scroll. This is the whole loop.
1 · Capture
The page, exactly as they saw it
One click captures the live page: layout, state, the lot. Not a screenshot, a real page you can still scroll, select, and pin.
2 · Feedback
Pins land where the problem is
Reviewers click the thing they mean and say so: numbered, anchored, no account. The sweep bar walks you pin to pin; J and K do it from the keyboard.
3 · Chat
The thread lives on the pin
Replies, markdown, agreement, right where the problem sits. Hand the pin to whoever has to fix it; they get one email, not a subscription.
4 · Done
Resolved, on the record
The fix ships, the pin flips, the author hears about it. The page keeps the whole conversation: proof of what changed and why.