rule34.xxx/index.php?page...ew&id=4356&pid=15

"A duplicate is an image uploaded after the original time-wise, the earlier image is always kept unless the newer image is a larger resolution in which case it replaces the original (except when it's >>double scale up<< in which case it will be deleted with zero tolerance, no scaling up!)"

What does "double scale up" mean?

Scaling an image's resolution up to double its width and height. Very easy to do even before AI tools came along to make it even easier.

So would this be considered a double scale up?

rule34.xxx/index.php?page=post&s=view&id=10018358 (Original post / 736x720, just like the source)

rule34.xxx/index.php?page=post&s=view&id=10018440
(Second post / 1104x1080)