I don't think it should really matter if some were inspired by anime.
Inspired is one thing... Tracing is another. You're basically saying that it's okay to use animations from people who've had decades of experience and practice to get to where they are now. And someone just takes that from you...
ANYWAY, this just really rubbed me the wrong way cause I'm highly against this sort of thing. It appears like the two effects mentioned were rotoscoped which just automatically raises concerns and it seems some of the more highly detailed ones are very close references using the same colour palette, composition, similar timing and shapes, but done by his own.. which is still kinda questionable. Just don't rotocope and don't reference so close that it literally looks like the original. Just use it as study guide and create your OWN animation.
http://www.filz.us/view/ad0e5741-324/ (Couple examples of this... First one is a very close ref while the other two are rotoscoped)
Anyway, I was the one that told him that to improve his effects he should study how other people do it... I didn't know that he'd literally reference/trace it to that extent and incorporate it into his own animation. But I think he's learned that it's wrong now and won't do it again.. And I feel bad for saying it out. but I felt like it was necessary. It was a good animation and a lot of time was put into it I'm sure.. but you have to makes sure what you're doing is the right way of doing things.. And I guess it's just a stick animation so it's not a BIG deal.. but if you keep going down this path, it will become a serious issue especially since you're apparently already working as an animator.
But yeah, I won't say anything more about this.. so don't worry. but you could at least mention Takashi Hashimoto.. the guy which most of your references/traces were based off from. >__>