| 6 | | Edit: there's also a slight change in behavior. |
| 7 | | |
| 8 | | Without passive: while touch scrolling the screen, even if you tap the reply link, the form won't open. Screen has to be still first. |
| 9 | | |
| 10 | | After adding passive: the form will open if you accidentally tap the reply link while scrolling. |
| 11 | | |
| 12 | | Just an observation, no clue if this is undesirable or okay. |
| | 6 | Edit: there's also a change in behavior when you touch the reply link and immediately begin to scroll on mobile. Before the form wouldn't open, now it opens and you scroll away from it. Just an observation, no clue if this is undesirable. |