I'm so over this trope (Even When I'm Dead)

I'm frustrated with the lack of intelligence in some of the female leads in the webtoons I've been reading. It's making me consider giving up on finding a new one. 

For example, in the webtoon "Even When I'm Dead," the main character, a noble girl, discovers she's been assassinated on her wedding day multiple times. It sound interesting right?

Unfortunately the concept is the only good thing coming from this. Instead of laying low, she decides to seek revenge by faking her death and attending her own funeral. Despite her distinctive appearance with white hair and purple eyes, she makes no effort to disguise herself. No attempts to dye her hair or anything....

That could've been brushed over if she didn't then infiltrate the suspected killer's mansion as a maid, using a shortened version of her original name and maintaining her unique features.

Unsurprisingly, the killer sees through her disguise and she fails to hide her intentions of seeking revenge. In a confrontation, she even drops a pair of scissors meant to kill him..DROPPED IT.

I know nobles often lack common sense yet none should lack intelligence to properly hide their identity. The irony is soo hilarious, she thinks she's this slick badass, when she so obviously not.

Now having a bad OI is one thing but to have comments trying to gaslight you into thinking its good is another. Any mention of her stupidity in the comments is flooded with replies hating and defending this trash. I'm so tired of Webtoon.