If an idea was so easily cloned, then it wasn't that valuable in the first place. This is the primary driving force behind all things that drop in price with economies of scale, lack of scarcity, and/or increasing ease of access.
Besides, ideas often aren't cloned because someone talked - they're cloned because (a) multiple people/groups often co-create very similar ideas because we're all feeding off the same pool of inspiration, and (b) your idea probably isn't as unique as you think it is, and the "brilliant stroke of insight" you experienced to create this thing was probably obvious to a lot of people.
Besides, ideas often aren't cloned because someone talked - they're cloned because (a) multiple people/groups often co-create very similar ideas because we're all feeding off the same pool of inspiration, and (b) your idea probably isn't as unique as you think it is, and the "brilliant stroke of insight" you experienced to create this thing was probably obvious to a lot of people.