I dunno, when you think about it, trolls usually make use of memes in a similar fashion. Many troll concepts, such as ‘pics or it didn’t happen’ or ‘no girls on the internet’ are the source of memetic concepts. I’m not sure memewhores have enough details implicit in their offline behavior, like trolls, camwhores and emos do. As things stand there’s already a strange power imbalance between the negative impact of trolls and the pseudo-positive impact of camwhores and emos. In this light, memewhores would become a nonentity.