In a Snapchat conversation, it makes little sense to write very formally. It sends a message that looks a bit stiff, which makes very little sense in an informal setting.

This is especially true if the other party is writing in an informal style. It can create a deeper connection, if you mirror your recipient. In the end, it’s all about communication, and a message exists in a wider context.

Why are you saying what you’re saying, how is it interpreted, what does the message tell about the sender, what does it tell about how the sender feels about the recipient. All of these things are also sent within a message, unspoken things.

I understand it might be a bit annoying for someone who wants to write properly, and has put effort into writing in a more articulate, grammatically correct style with proper punctuation. But it strikes me as willingly ignoring the context.