The email marketing world is rife with spammers and scammers. Email recipients need to be users of the platform. So it will only be worth it for advertisers if there is a huge userbase with diverse interests. This will require a huge marketing budget to achieve.
That is a very good and relevant question!
Actually, visitors of the portal are recipients, who are rewarded by tokens and are looking for their status of collected rewards, common users who are or aren't members of the portal and users invited trough advertising on other platforms.
Having some million users per day in the campaigns will bring a sufficient number of daily visits to the portal, to be interesting for all. Another change in the next version is a general search page (where non-members will be able to search for the contents, keywords, etc and they will see the reputation scores.
The general search page is a simple search for the content page, similar to the initial Google page.. Results are driven by AI.
So the visitors are the general public (members and non-members of the EMMARES platform. Members can earn rewards and rewards will be expanded from only tokenized rewards to also bonus or discount codes and latter a drawing games. Gamification is an interesting reward type for some type of interest (as gaming for example).