What is a daemon?
Daemons are computer processes that run in the background. Daemons handle various tasks and are loaded up as soon as you start up your device. They take up a lot of RAM but some of them are very important to the device. However, some of these daemons are completely useless and can be removed with no ill effects to the device.
I accidentally removed an important daemon and I didn't make a back up. What do I do?
You can connect to iTunes and restore your device. However, you will lose your jailbreak and any other daemons that you removed will be back in your device.
How much faster will my device be?
That depends on how many daemons you delete. Some people have reported have their boot time has been reduced to 10 seconds.
I found a daemon that is not listed. Should I leave it alone?
Yes. Leave it alone to be safe.