hi 2malmitprofis, we create like button actually on purpose for your website user. not only a fashion.
if your visitor press like, it will saved on their account. so they can go back again to their account and see what they like previously.
its possible to make it without login, but it will only become a cosmetic. not serve any purpose i think.
also if you need something like that, it will need some kind of custom change on your code.