Countless numbers of people use armouries (parts of other peoples' skins) to make their own skins. If you really extremely badly need to use an armoury, you can't post it on PMC. If you do, somebody like me can come along and flag your post for unoriginal content. When you upload a skin, do you ever bother to check the warning message at the top? Obviously not, if you post armoury skins. It says you may lose your uploading privileges! It is unfair that people earn XP from others' work. If you need help, use a beginner's guide*, then maybe you can move on to a more advanced guide.

*You may find my beginner's guide via here.