I wasn't trying to clown, I was honestly curious about that vs like soundcloud, bandcamp... I've been reluctant to sign up to any of them
IMO as independent artist it's important to sign up on every free website that is out there to promote oneself / music. Lock in your stage name in everything. It's not about blowing up, how much money we tell people we're making. Whatever the case is, dominate the internet in everything it has to offer. Some may say, "Internet Rappers" but it's a new era and like it or not the internet is where the music is at.
In answer to your question, I've found ReverbNation to be no different than the other social networks, but ReverbNation does offer a lot of things, such as offering submissions for a big project, opening for bigger acts, digital press kits etc. The only catch is they charge for those things, but it's there if you feel you need them & feel that it will help you progress a lot faster... to each his / her own. I have yet to hear of anybody getting ahead by paying for those type of services.