THCD, Not THCD

[Tobus]

Is tradition origin related or style/mode related?

Despite what some would wish it to be, tradition is defined solely by usage and acceptance. That's it. Nothing more. Styles and fashions are invented all the time out of thin air, but they do not become traditions until they have been established over a period of time. And they disappear all the time too. The existence of a tradition cannot revolve around any other criteria other than the fact that people are doing it routinely and perhaps even ritualistically.

I typically dislike the internet chat board defense mechanism of invoking Webster in cases like this, but here we go:

Full Definition of TRADITION

1
a : an inherited, established, or customary pattern of thought, action, or behavior (as a religious practice or a social custom)
b : a belief or story or a body of beliefs or stories relating to the past that are commonly accepted as historical though not verifiable

2
: the handing down of information, beliefs, and customs by word of mouth or by example from one generation to another without written instruction

3
: cultural continuity in social attitudes, customs, and institutions

4
: characteristic manner, method, or style <in the best liberal tradition>

So it seems to me that as long as something is established, accepted, and customary, it's a tradition. Regardless of whether it's perfectly clear who started it or whether its origins are unknown.