Well, I am not sure whether you meant my thread. Anyway, I hadn't opened it in Meta, but TC opened it on the correct board next, it became more popular, so I just quoted everyone on my thread in his thread.
Why I asked signed messages was:
1. To avoid someone from posting addresses he cannot sign. It is really simple to confuse for someone who is new to this, so my thread made signing address mandatory.
2. To make people figure out how to sign the message first, rather than trying to figure it out then.
3. No one can post someone else's address (assuming date is included) due to error or for fraud.
It is a good way, if you prefer awareness over simplicity.
1. well, IMO no users will post address that they dont own or they cant sign (newbies aside but there should a be message in the OP that should only post address that the user have full control)
2. i agree to this
3. why should someone post someone else's address? can you help me with this?
The point number 3 on ndnhc's post only tells you that you cannot use someone's address for fraud or scamming because first and foremost, you cannot prove that you have control over that address because you cannot sign a simple message using that address.