I think the main giveaway that Jill writes social media posts under the guise of her kids is when they always proclaim that she is the best mama ever. The supposed writings of her kids never declare David as the best dad ever. I am sure he isn't, but I am also very sure that Jill isn't the best mom ever either. Jill might want to toss in praise for David next time she writes a social media post for her kids. Of course random capitalized words is a good tell, but I think she has ditched that when she ghostwrites for her kids to make it appear to be more believable that she is not actually doing the writing.