I've now also issued a neutral trust and will wait for martyns to address all evidence presented by lovesmyfamilies.
In my opinion, signing one of the
addresses presented above by _BlackStar or making a post in Bitcointalk's indonesian local board, where native speakers will need to confirm if his text is native indonesian and not just Google translate, should be easy for martyns to prove that his account is not hacked or sold.
If he can't prove any of these easy solutions, it can be assumed that it's a sold or hacked account.
I could agree with your advice, but martyns is not obligated to prove it publicly even if we ask him to. OP might be able to facilitate account prove ownership via PM or somethings, so martyns just needs to work that out for this problem to be resolved. I'm not going to force him to post something in Indonesian right now, but might expect him to prove ownership of his account by signing bitcoin message. That's enough for me.