The whole point of the disclaimer is to STOP people from spreading the info that the poster might not want to have pop up all over the place.
The "harm" that might arise is that new info will not be posted as the poster might feel he cannot "trust" the readers not to spread it about, as you (and others) have done.
It is understandable that you might want to share any new info, but in future could you think about what you are doing and ASK FOR PERMISSION before you post, Alan is not an ogre I`m sure he would have agreed.
Oh wel,l such is life. :-)