I think it is nice for those who are exceedingly well-versed in Tamriel lore but for many on the roleplay site, who are laymen when it comes to these series of games, things like Illiac Bay or worm-cult may be complicated nouns that daunt them.

Those that joined the previous roleplay seemed to be very well-versed in the lore and went on to detailedly describe their characters with said nouns, but this might have also caused a lack in interest (a common occurence is that we end up too invested in character creation that we explored every niche of our characters, after which we find that we have nothing left to explore - interest dwindles quickly right away).

Maybe you could start with a small town? Something more newbie friendly? With the jargons and synonyms used explained briefly, like if you want to start in Markath  - explain the architecture of Markath as if your audience knows nothing of it. The stone walls, the ancient remnants of ruins that lay about. The hostile group of crazy deer-hide wearing maniacs trying to shoot travellers at every turn. Like what are nords? What are reachmen? What is this High-Rock which you speak of? Is it a place? 

I think that it would be interesting if we played as if the audience knew nothing of Tamriel. That's what I think and I do hpe that this helps a bit to progress this further interest in roleplay.