I don't have experience with running 1.8 but as far as I know the latest bensku fork did allow skript to load on 1.8, however there may be bugs since all they did was allow it to load. If you havent ran into any crazy bugs then you're probably ok. The feather issue is most likely an aliases file bug, you can try stopping your server deleting the aliases file and restarting the server so it creates a new aliases fileshould I be using the latest supported version of 1.8 instead of the latest version of skript since my server is 1.8 or does that not make a difference?