Evidence of Consciousness Surviving the Body I think you summed up my point very neatly there. Anecdote is the lowest form of evidence precisely because you cannot know how strong it is all on it's own. You must appeal to other validation (the addition of additional evidence from prior experience, etc.) in order to substantiate it.
For example, the problem with holy texts lies not in how they are interpreted, but in that they must be interpreted.
universal taxonomy - evidence by certainty
0 ignorance (certainty that you don't know)
1 found anecdote (assumed motive)
2 adversarial anecdote (presumes inaccurate communication motive)
3 collaborative anecdote (presumes accurate communication motive)
4 experience of (possible illusion or delusion)
5 ground truth (consensus Reality)
6 occupational reality (verified pragmatism)
7 professional consensus (context specific expertise, "best practice")
8 science (rigorous replication)
-=empirical probability / logical necessity=-
9 math, logic, Spiritual Math (semantic, absolute)
10 experience qua experience (you are definitely sensing this)