Guys here are missing the point of the Snapchat filters. The reason women use them is because the filters cleverly tone correct and boost the face. If you have ever notice the filter glitch you can see easily how a near flawless turns turns into a very weak looming face. Many girls look very ugly or plain in thier normal skin.
Snapchat was brilliant in that it made these filters so powerful that s girl can roll out of bed and the filter will make her look as if she just has a little makeup on, all the way up to boosting a girl a 1-2 points in her face of she is already dressed up with full make up on. Snapchat was smart because this minimizes the downtime women would so on the app. If a woman can always make herself look normal or near flawless she will use the app at any time and make content on it.
So, we see that women are slaves to thier vanity won't leave the filters alone because it feeds into thier need for vanity and ego fueling. It makes every girl look better and so you'll never see then fade away. To the point it has become so blatant that women use the filters in thier Tinder profiles pictures. So obvious because they are not confident in how they look or are ugly. Classic sign is if a girl only uses Snapchat filter pics on Tinder she is going to be ugly as dog.