someone who puts graphics into their thread ... will also be able to log the IP address that accesses the graphics
*May* be able to log IP addresses. While some perceive no danger, there is no good reason for an ihub user to trace another user's address. The only good reason I can imagine for doing so is to have specific hacking targets.
In fact, it wouldn't be hard to write a web application that immediately starts probing a computer for weakness as soon as it's served a file and grabbed an address.