If you don't know don't try
As previously said, this shouldn't restrict you from them but remember a few things.

Before you delve into the dev area's, can you fix your device, if you don't know what happened to it?

So, maybe learn more about what you are installing, definitley learn about how to recover your device (I.e. flasher), once you feel confident.... go for it...
If something goes wrong, you will feel alot more prepared

(Generic warning for devs area still applies!) Brickability rating = reasonably high (But then upgrading Nokia Firmware causes bricking.... meh)