Exposing Vs Reporting ign in forum trades

[Analytical]

How does one draw the line between "Exposing" and "Reporting/Sharing" an ign you saw?
(Has it been made clear by the forum community manager in the past?)

I would try to answer my own question, and also follow up with a doubt I have. That said, I would greatly appreciate any further inputs from anyone (especially the forum manager) as it has been quite confusing to me as to what is explicitly allowed and what is explicitly not allowed in forum with multiple people telling me different views. So here's my attempt.

In the context of trading:

Exposing = you are revealing a player's ign about a particular trade or transaction that has never been shared in the "public" (or could it extend to "anyone"?) where everyone could see clearly at what price some items are sold for or bought for and the igns involved for example in a forum's thread. Instead, they are all done in private both in game or in forum. Exposing the igns means an individual reveals these never before shared igns to the public.

Reporting = you are only "resharing" the ign that has already been made known to the public willingly by the ign owner himself/herself, it would not be revealing any new information that has not been shared publicly before, this could be found in forum traders' market, forum discussions, YT videos showing a trade etc.

If the above definitions are accurate (if not, please feel free to add your input on them), my doubt is this:

"(Let's make up an example) While I'm afk in towns, I see people buying and selling a particular item, so I asked the buyer what price are you buying it for and the seller what price are you selling it for. Then, once the seller replies me that particular item is sold, I will then ask who bought the item (ign disclosed to me) and the same thing I will pm the buyer, did you buy at this price? The buyer reply yes.

Now I'm carrying this information (igns) that's willingly been shared by BOTH the seller and the buyer and let's say I share the igns in a forum traders market thread."

Would I be consider as exposing/reporting an ign that has been willingly shared by BOTH/ALL of the owner of these igns, it may not be to the public but say, to a few individuals?