I signed up simply to ask this question, although it's awfully niche.
In textual situations, such as for roleplay or for humor, on the internet, one will use the third-person singular form of a verb to express that they are the one carrying it out. The best example I can conjure of this is someone saying "winks [at you]" in a text message - using asterisks to imply that it is an action.
It is "he/she winks," not "I winks."
Why do we do this? Any theories?