In all the time I have used Blender I never knew that Blender3D was the "official" name. Probably not surprising since it is never referred to as Blender3D. The official Blender website is not blender3d.org, the foundation is not known as the Blender3D Foundation even on the History of Blender page at blender.org, there is no mention of Blender being referred to as Blender3D. Even though, as you state, Blender3D is technically still correct, in common usage it is never referred to by that name. Whilst the sun will still come up tomorrow and life will go on regardless I still propose that the forum name be changed to reflect the common name usage of Blender.

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