I would advise you to sign a message from your old address and say that you are going to use a new address and then post the signed message in here so we know your account is still yours and you won't get trouble with it.
I spilt milk on an old laptop that had the bitcoin core & the bitcoin address I used on here some time ago. I didn't have a back up of that wallet so I can't sign a message on that address.
I do still have an even older bitcoin address on a PC that I used to transfer bitcoin's to the 'lost address' literally 2 years ago though.
I don't trade or anything any way & I am not selling my account so it doesn't really affect me but my only point was you can't dismiss somebody who can't sign a message on their old bitcoin address that they typed here.
I'm a long term, trustworthy member here & I don't have the address I used here originally
I had to send a photo of the old damaged laptop & a photo of my new replacement laptop with the receipt & date of purchase to a signature campaign manager so I was allowed to change my bitcoin address to receive signature campaign payment