If anything "Notched Eared Pichu" is just another gender difference that for some reason they didn't want to implement in Platinum (maybe because they were done with the Pokemon sprites in Platinum before working on them in HGSS.
I really don't think it has anything to do with genetic aberrations or anything like that.
Misinterpreting my posts is not your fault, negative repping me, and getting very sensitive about my posts because you misinterpreted my posts however is your fault. Think really hard, before negative repping or making a big deal about my posts. I don't appreciate being negative repped for reasons that are a result of misinterpreting my posts.