Or sometimes they remove a 25% off coupon that usually shows all the time and for the “sale” they just reduce the price of the item to that same amount without and then remove the coupon from the page. It will then look like it has gone on sale from camelcamelcamel because it wasn’t accounting for the price after the coupon it was only showing the item price.

https://github.com/intro-skipper/intro-skipper solves your intro skipping issue.