“The more social networks one joins the less one interacts with any one social network”
Please don’t create another social network. If you need a social network please piggy back on an existing one: Facebook, LinkedIn, Instagram, Pinterest, ….
If you think you need a social network – perhaps to challenge one of the existing ones? – remember Google Plus.
And make sure you know why you will succeed where Google failed.
Almost certainly you have less resources than Google.
Almost certainly you have a smaller existing user base then Google.
Almost certainly Google will see you as a competitor (as will Facebook, and LinkedIn/Microsoft, Instagram…)
So unless you are in fact the Google evil-empire don’t even think about it. And if you are Google remember you already failed, twice – remember Orkut?
Only a company as rich as Google can maintain the pretence that Google Plus was not an abject failure.