I don't know what actmyname believes but I believe that if you throw the book at someone you have to be sure about it and have proof to back it up. Particularly considering the dictatorial powers afforded by the T&Cs that don't even require to provide any specific reason for confiscating money.

In other words, the site can surely lean on the T&Cs the way the quote says, and look right and mighty without bothering to justify their actions, but it may erode their reputation if they keep doing this.