Lets say I post some kind of information, for example a research on something, or for another example a new idea, lets say a new defined board game with its rules and all that is still in the stage of development and testing and I don't want the idea to be stolen.
Lets say I post it on a free hosting website service like Weebly for example, so the people I'm working with and possibly new people can easily interact with it to possibly help with the improvements.
And I write somewhere on there, something like "This information should, and can only be used (unless directly allowed by author otherwise) for non-profit personal use or personal entertainment, and cannot be repuplished or reclaimed, even when modified, unless it is for a non-profit informational personal use and its strictly owned by (my email here)."
Is this something that can be done simply like this? Or all of the information there will be public and free to use anyway, but why so, and how to make it otherwise by the simplest way?
Also what could be done if someone sees it, then claims to have discovered it him/her-self and that he or she haven't seen my page, that its just an accidental similarity, or even that I'm the one that stole his/hers idea?
Lastly, should I also carefully read the terms of the free hosting service I'm posting to, in case it can take ownership of anything published on it?