What is this? I think you rushed through, because this is not enforceable in the slightest. So it's probably a joke.
First of all, and the minor thing, who is "Blue Eyes, THE White Dragon", certainly not you, unless we assume it. The name is different, and even if it was the same, you should clarify who it is since it's just a forum username.
Second, "ANY and ALL Artwork posted within this thread is property in all rights and titles of..." is not enforceable. You didn't add that the user agrees to upload content that they legally own. You didn't post a limitation of liability either.
Third, "and as such the posting of said artwork within the confines of this thread does not rescind any legal rights or uses for other parties including but not limited to commercial application and site owner Philip Burnell.", doesn't make sense. You didn't really specify who "other parties", (is it any party, Phil, the one that uploads the content...), are and you made it confusing. How is posting in this thread not "rescind" any rights, when the previous part of the sentence tries to obtain the legal ownership of the content, & I don't think you use "rescind" with "uses" like that. It's incomplete and ambiguous.
Not to mention this is barely a browsewrap agreement, the ideal thing would be a clickwrap agreement. I think this is even worse than the one in the Fan-Art thread. You don't have to add any "legal" statement in here, Phil said that he wouldn't use the artwork in this thread unless you give him permission, so if you want him to use it, simply post it on the main one. If you want to protect your rights, just submit it to DeviantArt for example, to have a better protection in case anyone uses it without your consent, however registration may be required in some cases if you want to sue someone for this.