User blog comment:Thomperfan/Leni Loud being ditzy is not a problem!/@comment-31022739-20170803050110

Let's not beat around the bush here, people; Leni's not very bright. Trying to downplay that blatant (and arguably, most defining) aspect of her character is denying who she is and that's a crying shame because Leni pulls off the "stupid" character very well; it's endearing, cute, and funny, which is a combination of traits that poorly written "stupid" characters avoid.

But beyond having its place on the show from a comedic aspect, it gives Leni's "big heart" moments that much more significance:

Leni shouldn't have a say in the matter because she's stupid, right?

She's not worth any sort of attention because her worthless two cents have no value, right?

Ah, she doesn't know better, right?

"WRONG!"  Leni shouts from the rooftops.

Her stupidity is an obstacle that adds significance to her "spotlight" moments because they're not expected from her. If she was just a nice girl who liked fashion, we'd expect Leni to always be the noble voice of reason or someone with a worthwhile addition in resolving a situation or a peson who knew just how to mend a broken heart/soothe hurt feelings.

And that's not nearly as interesting. It's crucial for her to be the dullest tool in the shed, not just for the sake of comedy but for the sake of highlighting Leni as a package that's full of wonderful surprises. If it means that she's a little more "flanderized" for this relationship to persist, I can gladly endure the "indignity".