IRC Bot: Command Suggestions?

I am programming an IRC bot for one of my projects. I want some input for commands for the bot functionality. What commands would people like to see or use for an IRC bot? For example:

Command to join a channel.
Command to leave a channel.
Command to repeat after a user in a channel.
Command to summarize a linked webpage.
Command to slap Sythe when he joins a channel.

And so on.

All input will be taken into consideration.

http://www.sythe.org/showthread.php?t=1228338

 

Command that calls people gay whenever they specify a given keyword.
Functionality so it feeds incoming text to a site like cleverbot and posts back the response, so people think they're talking to someone.

 

An ID finder.

For instance

!ID Shoop
The bot would then post a link to my profile on Sythe.

It's not hard to do as all people need to do is register their Sythe Profile