I am not correclty getting into this things. I don't have any speacialty i can do the map editing, base state editing, pokemon attack editing, starter and i am not too good in map editing but in other things i can do cause other are easy but i can't do anything else then i write in this message.
I meant what you do in hacks, like I do mapping, minor scripting, banners for promotion. Many have one specific part as their speciality and based on that they get into a team for hacking. To become famous you need to specialize in one of the things.