Crazyguy,
I am not aware of the practices you describe. I would not be surprised (although I would need to see verifiable sources), given the Roman insistence on peace (Pax Romana). Constantine intervened in the trinitarian debate because Rome did not appreciate dissension.
We must not think of the "Christian Church" as a homogeneous unit. Right from its start, the Movement was ripped by dissension and disagreement. Paul's correspondence is evidence for that.
The Jerusalem Group was decimated in 70 CE, moving to Pella and likely evolving into the Ebionites. The Jews outside Jerusalem were not so badly affected and we see a spectrum of movements such as the Paulines (followers of Paul), Gnostics, and so on and on.
The Western Church (Paulines, who ultimately formed the NT Canon), were strongly represented in North Africa, particularly Carthage and Alexandria, whereas the Eastern Church formed another block. During these early centuries, up to say the 5th century, Rome was not a dominant force.
However, the bloody "Jesus Wars" of the 4th and 5th centuries in North Africa so weakened the Church that the Muslims moved into the void and Christianity moved northwards, where it became the European religion.
Do not limit the concept of the early Movements through the biased vision of the early Church Fathers.
Doug