One of the site's pages has already been shared on the net, and it had 40-ish likes, not sure about exact number.
Anyway, I have shared the page via an FB Page, and after that the likes number reported on the actual page went to 1. I tried with switching the browsers, clearing the history (cookies, cache), but it's 1.
I wonder what could cause such behavior. Other pages do not seem to be affected.