Nobody
Seriously, there hasn't been a time where I saw a mon and went "oh, I forgot about you". When I see a mon I remember its name and the region it debuted in. I know not everybody plays Pokemon all the time (i don't either) but it surprises me how much people forget a lot of the mons.
>>34720692Grumpig was my favorite as a kid, I still like it now. It's really cute