Seeker Theory

[DEMACOLAPOO]

I've been playing through Dragonborn again and really noticed some strange things about the seekers. First off, people are known to enter Mora's Realm and stay forever learning things, so what if the seekers are actually people that have stayed for a loooong time. [Seekers seeming to have beards in a way] Also Seekers, when idle, read books. So i would like for you guys to give points either supporting the theory or not. And yes I know the wiki says the seekers are daedra but i can't find proof of such. any proof of that whould be nice