Why we need ranks then? Maybe better to operate without ranks - above Full Member i.e.

- because the remained Ranks speaking about Trust: Senior, Hero, Legendary

Uhm, I'm pretty sure ranks were supposed to be a statement of how much you've contributed to the forum and how many have approved or appreciated your contribution. As for trust, most people whom have negative remarks made about them should have a negative trust value shown and you can easily see it on their profile, right? As for trusting the sort of information, well, that is up to you. You can consider or remember things that were written down here but you should still do your own research. Solely basing your knowledge off of people on this forum may not be the best idea after all. Accumulating from different sources, compiling, and determining which is false and true should be the most easiest way to get the information you want. Now if you're a lazy one, then I have nothing for ya.