I get where the dude is coming from about Nove Justice, and Speedball, some with the New Mutants, Iceman, and Human Torch. How many times can you do the story where the young hero shows the big guys they're good or the goofball finally decides to grow up. Just like with Nightwing, it seems like every few years they do the "Dick is stuck in Bruce's shadow" bit.

It’s a fact of life that characters in comics are only going to mature so far and so fast—and that there’s always going to be a pull towards the condition in which they were created. Typically, that’s because their function within whichever team or family unit they exist in is to be the younger less mature one, and so them becoming seasoned and stable simply makes them boring. And if you’re not careful, you wind up with Batman having somehow had four Robins who all worked beside him and learned extensively from him in the space of five years.