don't worry at all,personally I'm blacklisted in many small tgps and in none big one. Small tgps blacklist you easier than you can imagine, it might be for the slightest reason. Many tgp webmasters think they rule the net, it's on of the funny things you see in this industry. The funniest of all it's that most of them don't earn from their tgp, but they do feel like kings and queens.
You feel down? low profile and you need better social position? start a tgp