It's quite mind-boggling to be bombarded with all these questions when there is absolutely no possible way for me to take advantage of anyone here. I have no interest in doing so. My dear...
You brought it on yourself, my dear. No one would ask you about your past if you approached this forum like a normal newbie would, and slowly and painstakingly built your new online presence from the ground up. But no. The first thing you stated was that you were "coming back" and that you were supposedly very active in this community in the past. It sounded like you wanted to prove something with that statement.
So, no. No one is asking you to share your private information or anything like that. We simply want to know who we are dealing with and what your old username is, if what you claim is true. What's the secret in that?
But, that's not the end of the story. The second thing you did was ask for a loan without proper collateral. Was this a normal thing for newbies in the past? I highly doubt that much has changed in this regard. The Rule of "No Collateral, No Loan" predates your alleged involvement in this community.
Even as a newbie here, applying for a loan would not be feasible for OP because there is no reputation and activities to back up the loan. Irrespective of the fact that OP has been here before, that does not guarantee that OPs chance of getting the loan is broad but rather, the chances are very narrow even if OP is given some consideration, I do not think OP can be trusted with any loan here.
Nevertheless, OP should not complain about the way and manner questions are being asked him about his real account with which OP started with. Starting the platform with such comment or statement would definitely attract eyes on op as it has happened. If OP had silently came back with his or her new account, I believe it would not have raised any dust just as it is ongoing now. OP put him or herself in this current situation. So no need complaining or crying foul.