Breeding is easy mode...
Not sure why ironmen would need harder bosses than regular players also.
Think the idea of having untradable accounts is a good idea, adds new depth. Agaist anything that makes them special apart from that, as it undermines the rest of the game.
Runescape isn't a good example of a comparable mmo btw. The drops in Runescape are all the same stats, meaning at some point you 'max'. In pro the drops (Pokemon) are all different stats and therefore the RNG is a completetly different type and the economy is therefore very different.
Getting 1 perfect pokemon is a 1/57million Event, 5x31+correct sync. therefore 'maxing' (getting all perfect pokemon) is an improbability. Shortcuts like Breeding for limited accouts will ruin the game.