It really depends on what your goal is, but if you're trying to sell a service or develop an audience, I wouldn't really recommend it. Every medium has its own unique quirks and users. You typically want to tailor your content based on the platform. Something like Twitter is best for short, quippy content and humor. Facebook is better for longer written content, and more popular with an older audience. Instagram is ideal for sharing images and video. You want to utilize each platform by playing into its strengths, which means customizing your posts.