What’s with the nickname obsession???

I’m fairly new to reddit and stumbled across the original subreddit and there’s this weird hyperfixation on what the nickname will be? Like they plan the name entirely around the nickname and even try to pair it with the nicknames of their other children. But they won’t just name their child the nickname they’re so insistent on? Just a strange phenomenon I’ve noticed along with naming their babies old surnames or names suitable for dogs.