I don’t see why capitals are a big deal. They are not measurably larger than the lower case. And in this case they were used appropriately and I got why they were used. No big deal for me.
But I dont think the poster should apologize for their post. From what I see they were being real and true to who they are. Their enthusiasm and spirit is obviously a gift, and the post makes total sense to me and gave off tremendous positive energy. We should all be grateful for reading such a joyful post.
IMHO (Is My Hat Outside?)