Probably some client-side scripting (of which, Javascript is one). As far as no admin/mod abilities... that depends on what the forum allows in its signatures... they evidently allow scripting. As far ...

Cookies and JavaScript are used to keep track of information such as how long the user of the website is viewing the page and how often the visit frequency is, but it is tracked that way Some people ...

We list the best IP address tools, to make it simple and easy to better manage networks. If you manage a large network of computers and other devices, you probably have many IP addresses to keep track ...