I have not been able to get it in a signature campaign since (the intended use). Therefore, I cannot make my investment back.
You still can. All negatives you've received are untrusted so all signature campaigns are still going to accept you.
So this isn't a valid arguement.
That's a pretty broad generalization; different signature campaign managers look for different things in their participants, but I wouldn't be surprised if most would be weary of accepting someone with what is potentially a stolen account - I know I would be, and would likely rather not have anything to do with it, in order to avoid it reflecting negatively on my campaign.
EDIT: but give it a try zedicus - LuckyBit is currently open.

I can tell you right now that luckybit and gawminers would accept him. So would a few others.