Hypothetical question: A member reports some major abuse going on the forum by another member and starts receiving threats on his personal contact details. Will the forum protect the first member in this case ?
Sharing personal details will not let you lighten with the anonymous status. If you needed this then you should not have the personal details on the personal details so wide open and clear to them.
Even ICO airdrops recent days takes the ICO airdrops details. These informations are really work for them.
So no who is is first and last all would be considered as a same person in forum rules.