Similar projects already exist. Therefore, you should think about what your new crypto currency and blockchain social network will be better than steemit/golos which working more than one year.
Yes it is, but there are a lot of things that can make difference from others.
I'm not code/algorithm person, but I think this is a good idea, it is social network such as facebook or Instagram? maybe need some features such as :
People could send cryptocurrency through your platform for reward or gift.
Live streaming to show off, where a person show his skill or teach something.