[xnacly]

The snowflakes do vanish once you scroll down even a single pixel

[MisterTea]

They stop spawning but the flakes already on the screen continue to fall until they reach the bottom. It's cute but very annoying IMO and there should be a user control to instantly turn it off.

[xnacly]

Its winter, it takes a literal second to fade out

[MisterTea]

They do not fade out in a second and continue to fall for 10+ seconds until they fade at the bottom of the page. It is also not winter everywhere.

[postalrat]

It is on that page