Guidelines for changing terminology introduced by self?
I also admit to doing this. The reason was twofold. Firstly, the old terminology clashed with existing terminology for concepts that I also needed, and secondly, the new terminology better reflected the concept that I was studying. It is also difficult coming up with a name for something when you invent it. But concepts need names.

There are obvious pitfalls to this approach, such as making papers harder to read. It is beneficial in the long run, because the accepted terminology (assuming that the newer terminology becomes the accepted terminology) does not clash with other terminology I need to use.