First of all, you are the one claiming knowledge that more or less contradicts some of our most fundamental physical understanding based on hearsay. If you don't understand how fundamental the speed of causality limit (c) or the mass/energy equivalence are to all of the rest of modern physics (and technology), how well proven they are, to what extraordinary precisions, how many other observations would make no sense without them, then there really is no point in continuing our discussion. Until you can account for the hundreds of thousands of reproducible experiments showing how speeds compose and time dilates without a fundamental limit to speed, saying that someone thinks they saw some bizarre phenomenon is very weak evidence.
Comparing "evidence" of aliens (which, I keep stressing, could as likely be angels or demons or devas) to evidence of drug abuse, parental abuse, rape etc is disgusting. Those in the later case are known, well understood phenomena, where we have clear, obvious reasons why reporting is going to be necessarily one-sided. By contrast, there is no clear reason why or how aliens (or angels, gods, kami) would interact sporadically with a few individuals, leaving little if any clear trace of their passing, despite the inordinate amounts of energy that would actually be required to achieve their stipulated movements (try to hide a space rocket launch for comparison).
Finally, I didn't insult you, so I don't expect to be insulted in return. I didn't even initially insult the people making these claims (I "insulted" the claims themselves), though I did do that in my follow-up comment, for which I apologize. Still, some of the people making these claims have been proven to have simply lied for various reasons. I firmly believe all of the others have had various hallucinations such as sleep paralysis or symptoms of various mental illnesses. This is not an insult, anymore than claiming that all people who have heard Lord Vishnu's voice and seen his chariot are either mistaken, lying, or have experienced some kind of altered mental state.
Claims of implanted devices have never been medically confirmed.