Just because you don’t see them now doesn’t mean they NEVER appear for no-level sellers.
If you read my earlier post, you would understand that buyer requests get removed from no-level sellers’ view (usually) within a few minutes of them being made available in the BR section.
Therefore, I think it is a matter of sheer luck (checking the BR section at the right moment) for a no-level seller to be able to see BRs and send offers in response to them. Checking the BR section as frequently as you possibly can will improve your chances of seeing a BR.
I have gone through this stage, too. So, unless something has changed from the time I was a no-level seller (which was not that long ago) and now, I think I know what I am talking about