Limiting # of ghost users.

[Half-Shot]

Busy rooms could quickly stack up members which might cause clients some problems after that get's large. #wtf is a good example of why you need to be careful.

A few methods we could try:

• Just remove people who haven't tweeted after X time.
• As above, but also have a threshold to reach first.

[Half-Shot]

Some clients (whether correctly or not) are struggling as is with the IRC bridge due to the number of member events, this would be useful to lighten the load.

[Half-Shot]

The issue referenced above pushes some of the responsibility to the bridge to make stale users leave. This should be doable by doing a DB request for last message sent into room_id for each twitter user.