You haven't provided any reason why anybody should trust you.  All of the possible scenarios put forth as to why it might not have been you who sent the PMs just aren't believable.  And ultimately there's no real way to know if some idiot on your bounty farm took control of your account for a few minutes so that they could send merit-begging PMs to DT members and thereby get you into trouble.  The only thing that is known for sure is that those PMs came from your account and you are responsible for your account's security and for all the words that get written with your account.

I'd be happy to remove my feedback if you could convince me you did indeed get hacked, but obviously you cannot do so.