unschooling reading/writing

Aharon age 5 has been reading for over a year already.  He is playing a game called Roblox "design it" and you have to dress up and people vote for you.  They give you a category and then you search for clothes in that category and dress your character.  They give you five minutes to dress your character.  So roughly every five minutes for the past three hours, Aharon has asked me how to spell something.  (I believe he is searching for categories of clothing--he asked for "wings" three times and he probably knows how to spell it by now).  In the beginning he was pretty intense and kept shrieking that he only has 4 minutes left and I have to help him RIGHT NOW!!!! (Which I did.)  I just noticed that in the last half hour or so, his requests are growing more spaced.  He must be learning to spell the commonly used words he needs.