As someone with a slight stutter that can occasionally become difficult to communicate that's talking to someone with an extreme stutter, I find it adorable. Not adorable as in most people would consider, more like I know and understand his trouble and him trying his best that hes even made me realize ways to improve it like he has. I learned we both took programs to improve our speech as children. I was 7.5 weeks early and although I developed perfectly fine, I still had minor issues that I still deal with at 23, like issues with my motor skills. An example is that a sign of motor skill issues is holding things by the tips of your fingers, etc. I frequently drop stuff or have doors slammed on me because of it. I find imperfections adorable while living in a society where yall find the slightest things unattractive. It's no different than people who find people with vitiligo adorable/attractive.