And if everyone follows your advice there will never be another good line of poetry written ever again. To write good poetry, one must consider what makes the great poets great. The secret is to be able to read a poem two ways simultaneously: one must read a poem analytically to understand why it is effective, and one must read a poem emotionally, because the main focus of poetry is emotional appeal.
Fear of losing one's " innate genius" is both stupid and destructive. If one allows oneself to enjoy other poetry, then one gains a dispassionate, aesthetic appreciation for the creativity of the artist - but one does not ever lose the passion born of the love of words. " Just [writing] anything that you please" has never resulted in a good poem ever, and it never will. Trust me.