Your title is misleading. It should reflect the content. I thought you were part of the mafia, ready to hit anyone for a fee. I know you want to generate attention and interest, but you are not targeting the right client with your title.
You already have a copper account, so why not post sample of your design to attract potential clients?
You are right. OPs style of introduction alone can scare away potential clients from attempting to make us of the service. It sounds more like a problematic and ganster kind of person who is looking for a fight work to do at first sight of the thread topic. When I first saw it that way what came into my mind not until I opened and read the content that was when I understood it was a graphic design services OP is rendering. The topic itself could scare away potential clients from even attempting to open the thread.
OP you can choose something that best suits the contents of your thread and service you render. It doesn't sound to cool the headings of your thread. I think you should look into it and do the needful.
Thanks for your insight! advertising has always been about being playful, challenging and attention seeking. it does what it says on the tin.