I can speak to both themes (channeling and experiences) since I channel every once in a while (something I don't talk about much, for a reason that will be obvious in this post) and most of the stuff I get is garbage. Every once in a while something actually is true, and I try to figure out what made this different from that, and to this day I still can't tell the difference from what obviously came from my subconscious and what came from a source that was objectively verifiable.

What I mean to say is this: If you think of it, our universe or reality isn't linear and pat, even though most of the time we perceive it as such (I know y'all know this already, I promise I'm coming to a point)- so in the ether (Akashic record, matrix, etc.) Everything is encoded as information- not only what is definitely going to happen, but what has a good chance of happening, and what has very little chance of happening. Add to this idle thought processes that may still be 'fresh' in the akasha, and things that are born out of belief. All that is there, ready to be received by anyone that can receive and process, and the result is a mishmash of information that frankly, is surprisingly clear, considering the processing power of the human brain.
So what would be the difference between someone like me, and someone who posts his/her channeled messages to the world as prophecy? That the channeler is sure that what they are transmitting is 'truth'- due to their belief and ego. Belief that I don't share. Unless the information is of a nature that is impossible to ignore (like being told that so and so will die in a terrible accident- in a case like that I'd tell that person even if (and they have) they laughed at me.
BTW, ego I have lots of- I'm just not that brave.

So when I see channeled information, I look at it, see what resonates with me, and just wait and see- but belief never enters into the equation, even (and especially) if the information came directly to me.

As to the 'alien' phenomenon? Heck, I don't even try to understand it. That's another post entirely.

Cheers.