Visions have no truth just because we experience them. Confirmation is needed.
I also don't take them too seriously, I could equally well tell you what I dreamed last night or few days ago, and it wouldn' t need to be more true that that. I thought that sharing one's inner experience is the purpose of this section, is it not ?
Dreams and visions have an inner logic, at the time of their occurrence they seem true and logical, what would be a rational confirmation? -I don't know.
According to what I have read about buddhist history not very much is known about the approximately 20 early schools of buddhism, all kinds of things can have been existence that have since then disappeared without a trace.
What are valid sources of knowledge in your view ?