Um, yeah, believers get together to pray, worship, and study. How does that translate into proclaiming I belong to the group "I follow Peter" or "I follow Paul"?
Your entire screed (or the screed you cut and pasted without giving source) attempts to assign all to some man made organization with no reference or understanding of what the ekklesia really is. Thank you for proving my point.
HTML tags allow one to source textual material with a link. If one lets the pointing icon hover over the text one should be able to see the source in the lower left.