but what if there are some genuine users with new ranks which hold something valid to be used as a collateral and they are in need of a loan?
Unfortunately that would be the exception rather than the rule. In fact, the "rule" is written in one of the stickies on the first page of the lending section, and it more often than not just gets ignored, and that's the main problem in that section. I don't look at the lending section as much as I used to, but when I was there frequently it seemed like nobody was offering valid collateral. If they offered anything, it was usually physical items and those deals never seemed to get completed (not surprisingly).
The only good collateral for an online loan of crypto is altcoins, but most people would just sell those coins if they needed money badly enough to take out a loan. Yes, there's an argument for why you wouldn't want to sell altcoins or tokens, but I think most people would just sell what they have rather than incur interest on a loan.
I often thought that the whole section should be done away with, as it seemed like there was so much wasted time there. Looks like that's not going to happen, but I'd say as long as there are DT members like Vod who routinely patrol Lending we should be find. If the noobs would read the stickies it'd be so much better. Maybe there should be a pop-up with the collateral rules before being able to start a new topic there. If people are starting threads to phish for suckers, it won't matter, but it would for legitimate newbies seeking legitimate loans.