[dkarl]

Using emojis feels a bit cliquey, in-groupy. It's an extra barrier to a new developer wanting to get familiar with the project or contribute a quick fix. And you know people are going to get emojis mixed up because different associatons come to mind for different people, so project committers are going to have to be diligent about noticing and correcting mistakes. For me, the effect is the opposite of the casual and inviting atmosphere I think they're intended to create.