Having written a few bots and scripts for the site, I have a few requests.

Require an "OK" button to play music, do not autoplay it. Additionally, have "Autoload images" something you have to turn on - that is, it is disabled by default. Additionally, display the domain name that the audio source comes from (I.E, display that it comes from www.sickMP3s.com)
Word wrap descriptions. While massively long descriptions are obviously not an intended feature, they are useful for roleplay rooms because you can squeeze the entire setting in there. I am aware that this is a cosmetic thing that nobody but me actually cares about, but it's also one line of CSS.
Alter the room's message queue to store the most recent public messages. Because the site stores the most recent messages (including DMs!) it is possible for DMs to completely wipe out a room's chatlog. It also allows you to determine how many DMs have been sent recently (a funny, yet unintended feature.)
Add a block feature that filters out a user's message in the room.

Regarding point one, I'd request this because the site directly links to external resources. This allows external sites to log things like IP Addresses and User Agents (Identifying information!)
Not a huge deal, but it is a minor privacy concern.

Also, when you make the HEAD request to an external resource, check if the resource has an HTTP-Auth header, because the username and password box pops up.