Here is a type of scenario I have seen play out over and over in different circumstances ...

X is stated on Y's website.

You comment about X being said.

Y modifies their website to change or delete X, then accuses you of defamation or some other wrong, and points to their newly changed website.

To protect yourself, make a quick copy of the page you are referring to. Using Firefox (and probably other web browsers) there is a plugin called Screengrab!...