I have an account on Minds.com but do not use it. Them making their own crypto piqued my interest however. It may be worth buying in the beginning just in case it takes off.
I gave up long ago on G+. My content was being filtered. There was no point in staying after I realized what was happening. :(
RE: The denialists are just like the defenders of Ptolemy: They come up with epicycles on epicycles in order to avoid conceding that they have the wrong null hypothesis.