I've always thought they seem to give far more thought to names since becoming 'famous'.
Millie and Tillie is truly ridiculous (even without adding Ellie and Hallie in the mix too! They clearly have a thing for double ll names but to go for one that completely rhymes with one they'd already used was just plain ridiculous).
I'm sure they'll say Ellie and Tillie both have the middle name May as they were both born in May, or something naff like that but, added to the rhyming thing, it really doesn't appear there was much thought there, does it?
With Bonnie and Heidie they went ridiculously ott with name reveals but they went ott with everything with them tbh, elaborate pregnancy reveals, gender reveals etc. It's like they think they're some sort of z list celebrities now, doing whatever they can for maximum social media likes. It's very sad.