eh, it's up to you.
In relation to myself - I personally try not to use the same anime or musical source (or sometimes even musical artist) more than twice, because i like having a whole bunch of variety. I would use the same source again if i believed it was a better concept than an earlier video, but otherwise, not really.
In relation to others - Someone using the same source more than once doesn't really bother me all too much. Unless they've made 10+ videos and have used that source for 90% of the videos. Then it kinda gets to me. Sometimes an editor revisiting a series they've already used can come up with some interesting results. A good example is Sierra Lorna's "
Sound Life", which uses a very slow and dramatic song, and as such the editing reflects that, as compared to her "
This is Living!", which uses a much more upbeat and 'actiony' song, and as such the editing reflects that. Two completely differently styled videos, same editor, same source. I love them both.
In the it shouldn't really matter what other people think, but as we all know, people like to get noticed
